Scuba Diving in Molokai

Diving in Molokai is the road less traveled in Hawaii. This is the least-dived of the main islands, with effectively one operator working out of Kaunakakai Harbor and no shore-diving scene to speak of. What it offers in return is wild, uncrowded diving over one of the healthiest reef systems in the islands. Molokai's south shore holds the longest fringing reef in Hawaii, running roughly 25–30 miles (40–48 km), protected and pristine thanks to the island's low development and light traffic. Offshore, the marquee draw is Mokuhoʻoniki Rock, an islet in the Pailolo Channel where hammerheads and reef sharks patrol current-swept pinnacles.

The trade-off is that Molokai diving is genuinely weather-dependent. The Pailolo and Kalohi channels around the island are among the windiest and roughest in Hawaii, so the offshore sites only run on calm days and can blow out for a stretch at a time. The sheltered inner reef stays diveable more often and holds gentle, beginner-friendly sites, but the famous dives, deep pinnacles and drift dives in moving water, are firmly advanced. Water sits between about 75 °F (24 °C) in winter and 81 °F (27 °C) in late summer, so a 3mm to 5mm suit covers it depending on the season.

Come here for the diving Hawaii used to be: healthy coral, few boats, and a real chance of sharks. Just build flexibility into your trip, because the ocean sets the schedule.

Best dive sites in Molokai

The best dive sites in Molokai split between the current-swept offshore pinnacles at Mokuhoʻoniki and the calm, coral-rich inner reef along the south shore.

Mokuhoʻoniki Rock

Molokai's signature dive, and one of the best in Maui County when conditions allow. Mokuhoʻoniki is a small offshore islet about a mile off the east end, sitting in the Pailolo Channel, and it's really a cluster of sub-sites: the Pinnacle, the Pocket, the Canyon, and more. The Pocket is the hammerhead spot, where you drop down a steep ledge to around 85 ft (26 m) with a real chance of scalloped hammerheads, alongside grey reef, whitetip, and Galápagos sharks and eagle rays. There's WWII ordnance scattered on the bottom, a leftover from its days as a bombing target. Currents run moderate to strong, and this is an advanced dive reachable only on calm days.

Depth: 30–100+ ft (9–30+ m) | Level: Advanced

Fish Rain

The most big-blue of Molokai's named sites, a true drift dive along the reef edge in moving water. Fish Rain runs deep, 80–100 ft (24–30 m), in the Pailolo Channel, so you carry plenty of air and go with the current. It's the site for pelagic encounters, with a shot at scalloped hammerheads, Galápagos sharks, monk seals, and schooling jacks. The strong current and depth make it a confident-diver dive.

Depth: 80–100 ft (24–30 m) | Level: Advanced

Hole in the Wall

A rugged volcanic pinnacle named for a gap in the cliff wall above the surface. The pinnacle rises to around 60 ft (18 m) from a base near 100 ft (30 m), draped in black coral and antler coral, with reef sharks and schooling butterflyfish working the structure. It's exposed to the channel, so current runs moderate to strong, and in winter you'll often hear humpback song rolling through. An advanced site.

Depth: 60–100 ft (18–30 m) | Level: Advanced

Fish Bowl

A south-shore reef of large coral-covered boulder formations, sitting a step down in difficulty from the offshore pinnacles. Depths run around 40–60 ft (12–18 m) with ledges and some deeper drops, and the current can run moderate to strong since the site still feels the Pailolo Channel. Expect resting whitetips, eagle rays, octopus, lobster, and green turtles, with a chance of hammerheads passing through.

Depth: 40–60 ft (12–18 m) | Level: Advanced

The Cove

Molokai's most protected named site, and the reliable fallback when the offshore sites are blown out. The Cove is a sloping half-circle formation with a drop-off around 50 ft (15 m), decorated with antler and black coral trees, in the calmest water Molokai offers. It's the entry-level friendly option, good for easing in or for a mellow second dive, with butterflyfish, puffers, hawkfish, resting whitetips, and the occasional manta or Spanish dancer.

Depth: 20–100 ft (6–30 m) | Level: All Levels

Explore Interactive Map

Explore more dive sites with Divearoo's Dive Site Explorer.

Best time to dive Molokai

The best time to dive Molokai is summer, roughly May through September, when the seas calm down enough to open the Pailolo Channel and make Mokuhoʻoniki reachable. Winter brings bigger swell and wind that frequently cancel the offshore trips, though the protected south-shore reef can still be diveable and it overlaps with whale season. However you plan it, Molokai diving runs opportunistically in calm weather windows and can shut down for days at a time, so flexibility is essential.

Diving conditions

Diving conditions in Molokai are all about the wind and the channels. The Pailolo and Kalohi channels around the island are among the roughest in Hawaii, so the offshore pinnacles and drifts run moderate to strong current and only open on calm days, while the inner south-shore reef stays much more sheltered. Visibility generally runs 50–100 ft (15–30 m), clearer in the blue water offshore and lower on the fringing reef after rain and runoff.

Marine life in Molokai

Marine life in Molokai is what draws the divers who make the effort: sharks, healthy coral, and real wilderness. Scalloped hammerheads are the marquee species, concentrated around Mokuhoʻoniki, alongside grey reef, whitetip, and Galápagos sharks. The south-shore reef is among the least-impacted in the main islands, with dense hard coral, and the endangered Hawaiian monk seal turns up here too. Roughly a quarter of Hawaii's reef fish are endemic, so the reef is full of species you won't see elsewhere.

Scalloped hammerhead (Sphyrna lewini): summer, especially the Pocket at Mokuhoʻoniki

The marquee draw, with a genuine chance of encounters over the offshore ledges when conditions allow.

Reef and pelagic sharks: year-round, especially the offshore pinnacles

Grey reef, whitetip, and Galápagos sharks are regular company on the current-swept sites at Mokuhoʻoniki and Fish Rain.

Hawaiian monk seal (Neomonachus schauinslandi): year-round, occasional and special

One of the most endangered seals on Earth, federally protected, so never approach a hauled-out or swimming seal.

• Green sea turtle (Chelonia mydas): year-round across the reef, common on the fringing reef and protected under federal law so keep your distance.
• Humpback whale (Megaptera novaeangliae): November to May in the surrounding channels, with Penguin Bank among the whale-richest water in Hawaii and song audible underwater all winter.
• Endemic reef fish: Potter's angelfish, bandit angelfish, and milletseed butterflyfish on every dive, over some of the healthiest coral in the state.

Discover more marine life on Divearoo's global heatmap.

Marine conservation

Molokai holds the longest fringing reef in Hawaii and one of the least damaged, largely because the island has resisted the resort development that has degraded reefs elsewhere in the chain. On the north coast, the community group Hui Mālama o Moʻomomi has spent decades working to secure state-recognized Community-Based Subsistence Fishing Area rules at Moʻomomi, an effort to put management of nearshore fish stocks back in the hands of the families who depend on them. Penguin Bank and the surrounding channels are prime humpback habitat inside the Hawaiian Islands Humpback Whale National Marine Sanctuary. Molokai is part of Maui County, so only mineral sunscreen is permitted here, stricter than Hawaii's statewide ban on oxybenzone and octinoxate. Monk seals haul out on these beaches, so give them at least 50 ft (15 m) on land and never pursue one in the water. Read more about Divearoo's Conservation First policies

Practical information

Dive prices

• Two-tank south-shore reef dive: around $229, small and often semi-private charters
• Mokuhoʻoniki advanced trip: around $389, weather-dependent and calm-days only
• Gear rental: a small add-on on top of the charter price
• Cost scale: $$$ overall, $$$$ for Mokuhoʻoniki, since one operator and small boats push the per-dive price above the high-volume islands

Getting there

Fly into Molokai Airport (MKK) in Hoʻolehua, a short hop from Honolulu or Kahului on regional carriers. The passenger ferry to Maui was discontinued in 2016, so flying is the practical route, and renting a car is essential since public transport is minimal. All diving is boat-based out of Kaunakakai Harbor with the island's single operator, and charters are weather-dependent, with the offshore Mokuhoʻoniki trip running only on calm days. The nearest recompression chamber is on Oahu, so a dive injury means an air evacuation. Carry DAN insurance and dive conservatively.