Kona Swimming

Kona | Kohala Coast | Hawai‘i

Big Island Ocean Swim Events

Kona, Big Island

Crystal Clear Hawai‘i Waters

Water in the high seventies year-round, a marked buoy line off Kailua Pier, and a public pool a five-minute walk up the road. Very few places make swimming this easy to build into an ordinary week. It is one of the real, unglamorous benefits of living here.

Hawaiian green sea turtle gliding through clear water off the Kona coast.
↗ Kona’s pristine ocean conditions make it one of the best places in Hawai‘i to live for those who love to swim.

The Morning Swim is Everything

Most days on this coast start the same way. People turn up at the pier, find whoever else is there, and go out. There is no roster and no schedule. Around eight is when the most swimmers are in the water, and the standing rule, the one nobody bends, is that you do not go alone.

That is also the fastest way into this community as a newcomer. Show up, ask who is heading out, and you are in. I have watched more than a few people arrive here knowing nobody and have a circle of friends inside a month because they started swimming in the morning.

Where to Swim in Kona

Swimmers wading in for the start of a Peaman biathlon at Kailua Bay in Kona.

Kailua Pier

The default. Dozens of people swim here every morning off the pier on a marked buoy line, and around eight is when most of them are in the water. Informal groups form and reform, and the standing rule is that you go with somebody. Water sits in the high seventies year-round. This is the same course the World Championship swims, out your front door.

  • Kailua-Kona
  • Open Water, Marked Buoy Lanes
Outdoor lap lanes at the public pool in Kailua-Kona, the year round option for swimming on the Big Island.

Kona Community Pool

The public outdoor pool just up the road from the pier, and a genuinely good facility. Lap swimming, lessons, and home to several local clubs, including youth teams and masters. It is where most people here fix their stroke before taking it into the ocean, and it is the answer when the surf is up, or you want a set you can control.

  • Kailua-Kona
  • Outdoor, Lap Lanes
School of yellow tang over the reef in Kona, a common sight while swimming here.

Kahalu‘u Bay

A protected reef bay in Keauhou, shallow and calm, with a lifeguard tower. The best snorkeling water close to town and the place families go when somebody in the group is not a confident swimmer. It gets busy by mid-morning. The reef is shallow enough that you need to be careful with fins and careful with your feet.

  • Keauhou
  • Shallow Reef, Lifeguard
Aerial of the oceanfront homes and lava shoreline at Kukio on the North Kona coast.

Kikaua Point

A small protected cove at Kukio, gated and requiring a beach access pass, which is most of why it stays quiet. Calm enough for small children and clear enough that you will not want to leave. If you are looking at property along that stretch of the Kohala Coast, this is an amenity people underrate until they have swum here once.

  • Kukio
  • Gated. Access Pass Required

Six Epic Open Water Swim Events

Ocean Swim Events on The Big Island

Swimmers heading out past the buoys at the start of the one mile race in A-Bay at Waikoloa Beach Resort.

Anaeho‘omalu Splash

The opening race of the West Hawaii Triple Crown, a one-mile swim in A-Bay at Waikoloa Beach Resort. Protected, shallow, and about as friendly an introduction to open water racing as you will find. You swim over live reef the whole way with a real chance of a honu underneath you at some point. Good first race if you have been doing pier swims and want to test your fitness.

Aerial of Hapuna Beach and the resort shoreline on the Kohala Coast.

Hapuna Roughwater

The second Triple Crown race, held at Hapuna Beach State Park on a beach that turns up on world’s-best lists most years. One mile tracing the outer edge of Hapuna Bay, which means you are out past the protection for a good part of it, and the name is not decorative. Bigger water than A-Bay. Beautiful swim, and the reason a lot of people come back for the whole series.

Overhead view of a mass swim start spreading out from the beach at a Kona open water race.

Kamakahonu

The Triple Crown finale, starting from the IRONMAN™ World Championship swim start at Kailua Pier. You pass Kamakahonu Beach and the heiau Kamehameha built before finishing back at the pier. Short, historic, and the one where the whole local swim community turns out. If you only do one race on this list, this is a good argument for which.

Buoy line marking the swim course at Kamakahonu with Ahuena Heiau on the point in Kailua-Kona.

The Ali‘i Challenge

The island’s ultra-long-distance swim, six miles from Keauhou Bay north to Kamakahonu at the pier. It has been going on since 1986 and includes solo swimmers and relay teams, with or without fins. You are in open water down the Kona coast for hours, and the marine life sightings are part of what people come back for.

Kua Bay on the North Kona coast, white sand and clear water backed by lava rock.

Kukio Blue Water Swim

Hosted by Kukio and run point-to-point, 1.2 miles from Kua Bay to Uleweuwu Bay along the Kohala Coast. Clear water, frequent dolphin sightings, and a stretch of coastline most people never see. It is one of the more scenic swims on the calendar, and it draws a strong field. Worth watching for the registration date, since it does not stay open long.

Protected shoreline pond ringed by palms and lava rock on the Hilo side of the Big Island.

Richardson Roughwater

The one that requires a drive, held at Richardson Ocean Park in Hilo on the other side of the island. Calm, reef-protected water, black sand, and a lush stretch of East Hawaii coast that looks nothing like the Kona side. A genuinely community-run event, often paired with environmental education and marine conservation work.

Penn Henderson, R(S)

The Ocean is My Backyard

Kailua Bay is the water I know best. Rani and I have swum and raced the pier course more times than I could reconstruct, and between the Triple Crown series, Peaman, the Hoʻala swim, and the IRONMAN™ World Championship, most of what is on this page is water we have actually been in.

What that gives me is a feel for the coast that is hard to get from shore. Which bays go flat in the morning and which stay lumpy. Where the current sets up. Which stretches of coastline look calm from Aliʻi Drive and are not. When a client asks how the water is near a particular property, I can provide first-hand perspective.

Swimmer exiting the water in cap and goggles at the Honu 70.3 swim finish.
↗ Back in the day – Ironman 70.3 Hawai‘i

Kona Swimming

Getting in the Water Here

Line of swimmers standing in the shallows waiting for the start of an A-Bay race at Waikoloa.

Swim Safe

Never swim alone. That is the first rule here, and it is not negotiable, because open water off this coast has currents, boat traffic, and no one watching from a tower. Go with the group at the pier, or go with a friend. Know the conditions before you get in, and know that they can change.

Outdoor lap lanes at the public pool in Kailua-Kona, the year round option for swimming on the Big Island.

Getting Started

If you are new to open water, start in the pool. The Aquatic Center is where people build the stroke and the confidence, and the transition into the ocean goes much better from there. After that, join a morning pier swim. It is informal, it is welcoming, and nobody is going to time you.

Masters swimmers working through a set in the lap pool at Kailua-Kona with a coach on deck.

Swim Clubs

Kona Aquatics and Kona Dolphins both run youth teams, lessons, and masters programs out of the Aquatic Center. Masters is the fastest way into the local swim community as an adult, whether you are training for something specific or just want structure and people to swim with.

What Swimmers Ask Before Buying

The question I hear most is how close the water is, and on this coast, that means something specific. Not oceanfront. Close enough that you will actually go on a Tuesday before work without loading anything into a car. That distance is shorter than people think, and it decides whether the habit survives the move.

The rest is access. Whether a stretch of shoreline has a legal entry point, whether a resort community’s beach requires a pass, whether the water in front of a property is swimmable or just scenic. Those answers exist, and they vary block to block. I can work them out with you on a specific property before you commit to it.

Aerial of the calm beach and bay at Mauna Lani on the Kohala Coast.
Property Questions?

Best Spots to Buy if You Love Swimming

Kailua-Kona

The pier swim and the Aquatic Center are both in town, five minutes apart. Condos, older single-family homes, and the shortest trip to the water anywhere on this island.

Keauhou

Kahaluʻu Bay and Keauhou Bay are both right here, and the Aliʻi Challenge starts from Keauhou. Quieter than town, with both condo and residential inventory.

Kohala Coast

A-Bay, Hapuna, and Kikaua Point along one stretch of coast. Calm morning water, resort access, and two Triple Crown races in your backyard.

FAQ

Common Questions About Swimming In Kona

Water clarity, temperature, and consistency. The Kona coast sits leeward of the mountains, so it is sheltered from the trades, and the ocean stays calm far more often than most Hawaiian shorelines. Water temperature runs from the mid-seventies to low eighties year-round, warm enough that most people swim without a wetsuit every month of the year. Visibility on a good day exceeds a hundred feet. There is no season when the water becomes unswimmable, which is what sets this coast apart from almost anywhere else people train.

The daily ritual that anchors swimming culture here. Swimmers gather at Kailua Pier most mornings and swim the marked course out to the buoy and back, roughly 1.2 miles round trip along the Ironman swim course. It happens every day, all year, with a mix of professional athletes, longtime residents, visitors, and people simply getting their morning in. Nobody organizes it, and nobody needs to. If you are new to Kona and want a fast route into the community, showing up at the pier a few mornings a week does it better than almost anything else.

Kahaluu Bay in Keauhou is shallow, protected, and full of fish and turtles, making it the best introduction to this coast. Anaehoomalu Bay at Waikoloa Beach Resort is soft sand and calm water suited to long, easy swims. Hapuna and Mauna Kea Beach up the Kohala Coast are excellent when conditions cooperate. Kealakekua Bay in South Kona is a marine sanctuary with some of the best clarity in the state. Honaunau, known locally as Two Step, is a favorite entry for swimmers and snorkelers alike. Each behaves differently depending on swell.

Generally, with respect for conditions. The dangers here are not the ones visitors expect. Sharks are a negligible concern statistically. Currents, surf entry over lava rock, and swimming beyond your ability are the real ones, and conditions change with the seasons and with distant storms, so a bay that is glass one morning can be unswimmable the next. Box jellyfish are the other thing to know about. They arrive on a predictable cycle tied to the lunar calendar, generally around eight to ten days after the full moon, and on those days swimmers get stung in the same spots that were fine the week before. Local lifeguards post warnings, and the influx dates are published in advance, so check before you get in during that window. Otherwise, swim with others, use a bright buoy in open water, and ask. People here will tell you honestly if a spot is wrong that day.

Yes, though the ocean is why most people are here. Konawaena High School in Kealakekua has a public pool, unheated and genuinely cold by island standards, which some swimmers appreciate, and others do not. The Waikoloa Village community center also has a pool. In Waimea, Hawaii Preparatory Academy has a facility with masters swimming available. Several condominium projects and resorts have lap pools, including the 25-meter pool at the Mauna Lani fitness center. If structured lane training matters to your week, confirm access at any specific property, since a resort pool and a genuine lap pool are not the same thing and listings tend to blur that distinction.

One of the more remarkable things you can do in the water anywhere. Manta rays gather at night off Keauhou Bay and near the airport to feed on plankton drawn by lights, and snorkel and dive operators run trips out most evenings. Swimmers float at the surface while animals with wingspans over ten feet pass underneath. Residents take visiting family, and it does not lose its effect. Keauhou Bay is the classic departure point, and living nearby means it is a spontaneous evening rather than a planned excursion.

Rarely directly, and this trips up buyers. Most of the Kona coastline is a lava shelf rather than sand, so even oceanfront property often lacks a practical entry point. Puako on the Kohala Coast is one of the better exceptions, with reef access along its three-mile road. Some resort communities have beach clubs with dedicated access. If getting in the water from your own place is a genuine requirement rather than a nice idea, tell me early, because it narrows the search considerably and it is not something you can determine from photographs.

A steady one. The Peaman series runs regular ocean swims and short-course events out of Kailua Bay, with a decidedly unserious atmosphere and a real community around it. The Ironman swim course draws people year-round. Various charity and club swims fill out the calendar, and the King’s Swim and similar distance events give you something to train toward. Between the daily pier swim and the event calendar, you can build an entire athletic life here around the ocean without ever entering a pool.

Talk Story

Every Big Island move starts with a conversation. Tell me what you are looking for, and we will take it from there.

Compass Real Estate in Kona, Hawaii - Penn Henderson, Big Island Real Estate
Penn Henderson of Compass

75-1029 Henry St., Suite 301
Kailua-Kona, HI 96740

Phone: (808) 345-6214
Email: penn@pennhenderson.com