Things to Do in Kona, Hawaii (Big Island): The Honest Guide

Kona is where the Big Island keeps its sunshine, its coffee, and the best night-snorkel on the planet. If you only have a few days on Hawaii's west coast, here's the whole thing in one breath: the best things to do in Kona on Hawaii's Big Island are night-snorkeling with manta rays, snorkeling Kealakekua Bay, touring a Kona coffee farm, standing in a 400-year-old Place of Refuge, and beach-hopping down Aliʻi Drive until the sun clocks out.

That's the island in a sentence. You could stop reading and go book the manta tour right now.

(Don't, though. There's a parking situation. On the Big Island there is always a parking situation.)

Kona — officially Kailua-Kona — sits on the dry, leeward side of Hawaii Island, which is the travel-brochure way of saying it almost never rains on your vacation. The big volcanoes block the trade-wind clouds, so while Hilo on the east side is collecting its 130-odd inches of rain a year, you're on the Kona coast reapplying sunscreen and pretending you remembered to the first time. It's the side most people fly into, base themselves on, and never quite leave.

This guide is the honest version. Not "47 magical hidden gems," half of which turn out to be a gas station with a nice view. Just the things actually worth your hours, in roughly the order I'd do them, with the catches nobody puts in the captions.

What's in this guide

• Swim with manta rays after dark
• Snorkel Kealakekua Bay and the Captain Cook Monument
• Tour a Kona coffee farm
• Stand in the Place of Refuge: Puʻuhonua o Hōnaunau
• Wander old Kailua-Kona town
• Find your beach in Kona
• Watch the sun go down from the water
• Day trips worth the drive from Kona
• How many days in Kona, and when to go
• Where to stay in Kona
• Things to do in Kona FAQ

Photo: Jakob Owens on Unsplash

Swim with manta rays after dark

Start here. If you do one thing in Kona, do this.

After sunset, boats motor a few minutes offshore to a couple of reliable spots — most often Garden Eel Cove near the airport, or the cove off Keauhou — where crews shine bright lights down into the water. The light grows plankton. The plankton draws the manta rays. And then you're floating on the surface, holding a lighted board, while animals with 12-foot wingspans do slow barrel rolls a hand's width below your stomach.

They have names. Local operators have catalogued hundreds of individual mantas by the unique spot patterns on their bellies, so your guide will cheerfully announce "that's Lefty" while you are quietly recalculating your entire relationship with the ocean. The mantas are filter feeders — no stinger, no teeth worth worrying about, no interest in you beyond the soup of plankton you happen to be floating in. It is the gentlest possible way to be deeply, wonderfully unsettled.

Here's my one hill to die on for this whole post: the manta ray night snorkel is worth booking even if you book nothing else in Kona. The signature sunset trip has racked up nearly 6,000 reviews at around 4.8 stars, which is not the score you get for a boat ride and a flashlight. Book a snorkel trip rather than the scuba version unless you're already certified — you float on the surface either way, and the mantas come up to you.

Two honest catches. It's dark, it's open water, and the boat rocks, so take motion-sickness tablets an hour before if you're at all prone — figuring out you get seasick while a manta loops your midsection is poor timing. And bring a towel and a warm layer for after; "tropical" and "wet at 8 p.m. in the wind" are two very different climates, and the boat ride back will teach you the difference.

Snorkel Kealakekua Bay and the Captain Cook Monument

Kealakekua Bay is, on a calm morning, the best snorkeling in Hawaii — and I don't say that to be cute. It's a marine life conservation district, the water is glassy and clear, and the reef in front of the Captain Cook Monument drops into a coral garden absolutely stuffed with fish, the odd reef shark, and spinner dolphins that rest in the bay by day.

The bay is also where Captain James Cook was killed in 1779, which the white obelisk on the north shore commemorates. Standing on Hawaiian water reading a British monument to a man who did not have a good final trip is a strange little history sandwich, and it's part of what makes the spot stick with you.

Getting in the water is the catch. The land around the monument is essentially access-controlled, the old hiking trail down is brutal and often discouraged, and kayak landings are tightly regulated to protect the reef. The clean answer for most visitors is a Kealakekua Bay snorkel and sail tour — you sail down the coast, the captain reads the conditions, and you snorkel the good reef without turning the morning into a permit seminar.

If you'd rather stay on land, drive south to Two Step at Honaunau Bay, right next to the Place of Refuge. There's no sand — you enter off a flat lava shelf using two natural "steps" — but the reef is excellent and the access is free. Bring water shoes; lava is not a barefoot surface, and your soles will write you a strongly worded letter.

One bit of etiquette that matters here: don't chase the dolphins. They use the bay to sleep, federal guidelines ask you to keep your distance, and crowding them is both rude and increasingly illegal. Admire them from across the water and let them rest. You came for the reef anyway.

Tour a Kona coffee farm

Kona coffee is the only thing in this guide with its own counterfeit problem. The genuine article grows in a thin 30-mile belt of volcanic slope above the coast — the right elevation, the afternoon cloud cover, the rich young soil — and almost nowhere else on earth has that exact recipe. That scarcity is why "10% Kona blend" exists, which is the coffee equivalent of waving a photo of a steak at you and calling it dinner.

Photo: David Restrepo on Unsplash

So go to the source. The upcountry road through Holualoa and Captain Cook is lined with small farms, many of them family-run, where a Kona coffee farm tour walks you from the cherry on the tree to the cup in your hand — picking, pulping, drying, roasting, and the part you actually came for, the tasting. Most run an hour or two and cost less than a fancy lunch.

A few things I learned the slightly expensive way. "Peaberry" isn't a marketing word — it's a single rounded bean instead of the usual two flat halves, and it tends to taste a touch brighter, so try it. Buy your bag at the farm, not the airport. And if you don't drink coffee, the same belt grows cacao and macadamia, so you can tour your way to a chocolate tasting and feel very smug about your life choices.

This is also the most weather-proof thing in Kona, which matters more than you'd think on a beach trip. Rough surf, cloudy afternoon, yesterday's sunburn finally presenting its invoice? A shaded farm and a flight of single-origin pours is a genuinely lovely way to spend two hours doing nothing remotely athletic. Time it for the heat of the early afternoon and you've turned the one dud weather window into a highlight.

Stand in the Place of Refuge: Puʻuhonua o Hōnaunau

This is the one to slow down for. Puʻuhonua o Hōnaunau National Historical Park, on the coast south of Kona, was a place of refuge in old Hawaii — a sanctuary where a person who had broken a sacred law, a kapu, could flee for their life. Reach it, and a priest could perform a ceremony of absolution. You walked out forgiven. Defeated warriors and non-combatants sheltered here in times of war, too.

It is, in the most literal sense, a place older than the country you flew in from, and it has the calm to match. A massive dry-stacked stone wall — built around the 1500s without a drop of mortar and still standing square — separates the refuge from the royal grounds. Carved wooden kiʻi temple images stand guard over the reconstructed heiau. Sea turtles haul out on the black rocks like they hold the lease.

Go in the morning or late afternoon, walk slowly, and read the signs — the National Park Service has the full story on site and it deserves more than a quick lap for the photos. This is sacred ground, not a backdrop: stay on the marked paths, don't climb the walls or the platforms, and give the turtles a wide berth.

Pair it with Two Step snorkeling next door and you've built the best half-day on this coast — history, then reef, then a lava-shelf swim, all within a few hundred yards of each other. Entry is a modest per-vehicle fee, and the receipt is good for a week if you fall for the place and want to come back at a quieter hour.

Wander old Kailua-Kona town

Kailua-Kona the town is small, walkable, and pleasantly ramshackle, strung along Aliʻi Drive where it meets the water. This is the afternoon-and-evening part of your trip: shave ice, poke bowls, flip-flop shopping, and a seawall that's basically engineered for doing nothing while the ocean shows off.

Two stops earn the walk. Huliheʻe Palace was a vacation home for Hawaiian royalty, a breezy seaside place stacked with koa-wood furniture and family portraits — a quietly affecting look at the monarchy at leisure. Directly across the street, Mokuaikaua Church claims the title of Hawaii's oldest Christian church, built in the 1830s from lava rock and crushed-coral mortar, with a steeple you can pick out from the water.

Then there's the pier, where, for one weekend every October, the Ironman World Championship turns this sleepy strip into the most intense endurance race on earth. The rest of the year it's where kids cannonball into the harbor and outrigger canoe clubs paddle out at dawn. Both versions are very Kona, and the contrast is the whole personality of the town.

Aliʻi Drive is also dinner-and-sunset headquarters. Grab a table facing west, order something with the day's catch in it, and time your meal to the light. Speaking of which — here's a small confession, since I'd rather be honest than salesy: we run luxury beach picnics, but only on Oahu, so on the Kona side you are gloriously on your own. (If your trip also touches Oahu, that part's our beach, starting at $349 for two. If it doesn't, just buy the good poke and tip well.)

Photo: Caleb Carl on Unsplash

Find your beach in Kona

Kona's coastline is young lava, so its beaches are fewer and frankly weirder than Maui's, and you have to know which one you want before you drive to it.

• Magic Sands (Laʻaloa) is the classic in-town swim and bodyboard beach — and "magic" because the sand genuinely washes away in winter swells and returns in summer, like a beach with commitment issues. Glorious when it's there. A field of bare lava when it isn't.
• Kua Bay (Maniniʻōwali) is the postcard: bright white sand, electric-blue water, just north of the airport. It's also the most popular, so the lot fills by mid-morning and you'll do the slow vulture-circle of shame waiting for someone to leave. Go early.
• Kahaluʻu Beach Park is the easiest snorkeling in Kona — a sheltered, shallow bay packed with fish and green sea turtles, with lifeguards and actual restrooms. It's where you learn to snorkel before you spend money on a boat.
• Makalawena is the reward beach: a sandy hike in past Kekaha Kai, no facilities, no crowds, sublime. This is the one you earn on foot, and the lava rock between you and it is the price of admission.

A blunt truth about Kona beaches: the surf and the lava do not care about your plans. Check the Hawaii Beach Safety forecast before you commit to a swim spot, watch for the high-surf and brown-water flags, and when a lifeguard tells you the current's working today, believe them on the first telling rather than the third. The ocean here is spectacular and completely indifferent to your itinerary, which is exactly how it should be.

Watch the sun go down from the water

Kona faces dead west, with no other island parked on the horizon, which makes it one of the best sunset coasts in all of Hawaii. You can do this two ways.

The cheap way: post up on the Aliʻi Drive seawall, the Kahaluʻu shoreline, or any west-facing beach with a cold drink, and watch for the green flash — that split-second emerald flicker as the sun's last edge drops below a clean ocean horizon. It's real, it's a genuine trick of atmospheric refraction, and Kona's flat sea gives you a better shot at catching one than almost anywhere in the islands.

The splurge way: a Kona sunset catamaran sail. You glide down the coast with a drink in hand, the cliffs go gold, and on winter trips from roughly December through March the humpback whales routinely photobomb the whole production. Two hours, no driving, no parking, and someone else does the cleanup.

Photo: John Baker on Unsplash

If you want a free spot with a built-in show, the lawn and seawall in front of Huliheʻe Palace and the little crescent at Kahaluʻu both line up dead west, and both come with a parking lot you can actually find. Bring a takeout poke bowl, claim a patch of grass, and you've assembled the cheapest good dinner in Kona.

Either way, here's the move nobody tells you: stay put for fifteen minutes after the sun's gone. Kona's afterglow — the long pink-and-orange wash once the sun is down — is often better than the main event, and that's exactly when half the beach folds the towels and leaves. Let them go. Bring a reef-safe mineral sunscreen for the daytime, a light layer for after dark, and stay for the encore. And if you timed it right, the sunset sail dropped you back at the harbor with just enough evening left to make the manta tour — a genuinely great one-two punch if your stomach is up for two boats in a day.

Day trips worth the drive from Kona

Kona is a fantastic base, but the Big Island is genuinely enormous — bigger than all the other Hawaiian islands put together — so some of the best stuff is a drive away. Three day trips are worth the windshield time.

Hawaiʻi Volcanoes National Park is about two to two-and-a-half hours southeast, and it's basically non-negotiable on a first trip. You can stand at the rim of Kīlauea, walk through a lava tube, and — when the volcano is actively erupting — watch the caldera glow after dark. It pairs naturally with the black-sand beach at Punaluʻu on the way down, which I've written up in the black sand beach guide.

Mauna Kea is the other-worldly one. From the visitor station at 9,000 feet you get some of the clearest, darkest stargazing on earth, and a Mauna Kea summit and stars tour handles the altitude, the cold, and the driving so you're not white-knuckling a rental van down a gravel road in the pitch dark. It is summit-of-a-volcano cold up there even in July, so a real jacket is genuinely not optional.

Waipiʻo Valley on the north end is the dramatic green amphitheater you've seen on every Big Island postcard — though access to the valley floor has been restricted in recent years, so check the current rules before you go and be ready to admire it from the lookout instead.

For the full lay of the land — drive times, which side is which, what to skip — start with the Big Island map guide and the broader things to do on the Big Island roundup. Between them they'll keep you from cheerfully booking a sunrise tour that needs a 3 a.m. alarm two hours away from your hotel.

How many days in Kona, and when to go

Give Kona three to four days of a Big Island trip. Two is enough for the manta tour, one good snorkel, and a coffee farm; four lets you add the Volcanoes and Mauna Kea day trips without sprinting through any of it. If you've got a full week on the island, base a few nights in Kona and a few in Hilo so you're not driving back and forth across a very large rock every single day.

Kona's weather barely has a bad season — it's the dry side — but the water has moods. Summer, May through September, brings the calmest seas and the best snorkeling and beach days. Winter, December through March, brings bigger surf, the humpback whales, and slightly higher prices around the holidays. The manta tours and the coffee farms run year-round regardless of the season. For the wider picture, the best time to visit Hawaii guide breaks down the whole calendar month by month.

A few logistics that'll save you a headache:

• Rent a car. Kona has almost no useful public transit for visitors, the sights are spread along the coast and up the slope, and the day trips flat-out demand one. Budget for a rental from the airport and you've solved most of your problems.
• Parking fills early. Kua Bay, Two Step, and the popular trailheads run out of spots by mid-morning. Early start, every time — it's the cheat code for the whole island.
• Pack layers anyway. It's the dry tropics at sea level and genuinely cold on Mauna Kea, so check the Hawaii packing list before you find yourself buying a $60 fleece in a gift shop at 13,000 feet.

The free, official Big Island visitor site is a solid second opinion on current conditions and seasonal events if you want to sanity-check any of this.

Where to stay in Kona

Most visitors base in one of three zones. Kailua-Kona town and Aliʻi Drive put you walking distance from dinner, the seawall, and the pier — the most convenient, least resort-y option and the easiest for a first trip. Keauhou, just south, is quieter and sits close to a reliable manta-ray cove. And the Kohala Coast resorts, 30-ish minutes north, are the big-ticket beachfront stays with the calmest swimming sand on the whole island.

If you're choosing purely on water, Kohala has the better beaches; if you're choosing on walkable-dinner-and-vibe, stay in town. Ocean-view rooms on this coast all face the sunset, which is not nothing on a sky like this one.

There's a budget angle, too. Kailua-Kona town runs the gamut from modest condos to mid-range hotels, so it's the easiest place to keep the nightly rate sane while staying close to the action. The Kohala resorts are where the price tag lives, but they buy you a swimmable beach and a pool the kids won't leave — worth it for some trips, overkill for others. And if you're doing the Volcanoes day trip, a single night near Hilo or Volcano village on the back half of the week saves you a brutal round-trip drive and lets you catch the caldera glow after dark without falling asleep at the wheel on the way home.

I'll be straight that this is the one section I can't hand you a booking link for yet — I don't have a Big Island lodging partner I'd actually stand behind, and I'm not going to point you at an Oahu link and pretend it's local knowledge. When that changes, this is exactly where it'll live. Until then, search "Kailua-Kona" or "Kohala Coast" on your hotel site of choice, sort by the map, and book the one that's closest to the water you care about most.

Things to do in Kona FAQ

What is Kona, Hawaii best known for?

Kona is best known for three things: world-famous Kona coffee, grown in a narrow volcanic belt above the coast; the manta ray night snorkel, one of Hawaii's signature ocean experiences; and being the sunny, dry, leeward base of the Big Island. The Ironman World Championship triathlon also calls Kailua-Kona home each October.

How many days do you need in Kona?

Three to four days is the sweet spot. Two days covers the highlights — manta rays, a snorkel, and a coffee farm. Four days lets you add day trips to Hawaiʻi Volcanoes National Park and Mauna Kea without rushing. On a week-long Big Island trip, split your nights between Kona and Hilo to cut down on driving.

Is Kona or Hilo better to stay on the Big Island?

Kona is the sunnier, drier side with calmer water, more beaches, and most of the resorts — the better base for swimming, snorkeling, and sun. Hilo is greener, rainier, and closer to the volcano and the waterfalls. The ideal Big Island trip uses both: a few nights each so you're never driving the whole island in a single day.

What's the best time of year to visit Kona?

Kona is good year-round because it's the dry side. Summer (May to September) brings the calmest seas and best snorkeling. Winter (December to March) brings bigger surf, humpback whales offshore, and holiday-season prices. The manta tours and coffee farms run in every season.

Can you see manta rays in Kona during the day?

The famous manta experience is a night tour, because the boats use bright lights to attract the plankton the mantas feed on — and that only works after dark. You can occasionally spot mantas while diving or snorkeling by day, but the reliable, near-guaranteed encounter is the after-sunset trip.

Do you need a car in Kona?

Yes. Public transit is minimal for visitors, the beaches and sights are spread along the coast and up the mountain, and the best day trips to Volcanoes and Mauna Kea require driving. Rent a car at Kona International Airport and plan for early starts, since the popular beach and trailhead lots fill by mid-morning.

Is the Kona snorkeling good for beginners?

Very. Kahaluʻu Beach Park is one of the easiest, most protected snorkel spots in Hawaii — shallow, calm, full of fish and turtles, with lifeguards and facilities. It's the ideal place to get comfortable before committing to a boat trip out to Kealakekua Bay or the manta cove.