Molokini Crater Visitor Guide: Location, Access and Rules
Molokini Crater Overview
Written by the Maui Snorkeling Team Molokini Tour Operator since 1985 | Maʻalaea Harbor | USCG-licensed captains
Last updated August 28, 2026
Quick answer: Molokini Crater is a protected, boat-access-only volcanic islet about 3 miles off South Maui. Visitors cannot land on the islet, and snorkel tours use established moorings to protect the reef. Most visitors see Molokini from the boat and snorkel inside the crater when ocean conditions allow.
Molokini Crater at a Glance: Molokini is a crescent-shaped volcanic islet (the rim of an extinct crater) in the ‘Alalākeiki Channel between Maui and Kahoʻolawe. It’s protected as a Marine Life Conservation District and a State Seabird Sanctuary, which is why boats use established moorings (no anchoring) and entry onto the islet is prohibited.
Location: About 3 miles offshore of South Maui
Access:Boat only (no shore entry)
Protection: MLCD + Seabird Sanctuary (DLNR)
On-islet entry:Prohibited
Moorings: Day-use moorings; no anchoring when moorings are established
Molokini is often called a crater, but it’s actually a rare geological formation known as a tuff cone, a type of volcanic vent formed by explosive interactions between magma and seawater. Rising hundreds of feet from the ocean floor, Molokini’s unique shape creates a variety of microclimates within a small stretch of reef. These diverse conditions support an impressive ecosystem, home to dozens of hard coral species and a high diversity of tropical reef fish within its sheltered crescent.
Where Is Molokini Located?
Molokini Crater is a crescent-shaped volcanic islet located about three miles off Maui’s southwest coast, between Māʻalaea Harbor and the island of Kahoʻolawe. Accessible only by boat, this partially submerged crater rises from the ocean floor to form a natural marine sanctuary. Most snorkeling and diving tours to Molokini depart from Māʻalaea Harbor or Kihei Boat Ramp, making it an easy half-day adventure for South and Central Maui visitors. The crater’s curved shape creates a protected inner lagoon ideal for snorkeling, while its outer “back wall” drops steeply into deep blue water popular with scuba divers.
Why Molokini Can Be So Clear
Molokini’s offshore location and protected inner crescent can create excellent visibility when ocean conditions cooperate. Because it’s still open ocean, wind and swell can change the surface quickly, so comfort and clarity vary day to day.
Commercial operators must hold the required permits; recreational vessels may use designated day-use moorings under current DLNR rules.
Stay at least 10 feet from sea turtles
Stay at least 50 feet from Hawaiian monk seals and 150 feet from mother seals with pups
Stay at least 50 yards from dolphins and small whales, and 100 yards from humpback whales
Use reef-safe sunscreen and avoid standing on coral or stirring up sediment
These guidelines help keep Molokini Crater pristine for future generations of snorkelers and divers.
History And Conservation
Molokini’s story spans its volcanic formation, Native Hawaiian cultural significance, World War II impacts, and modern conservation. Read the full Molokini Crater History and Conservation guide for the complete timeline.
Molokini Wildlife
Visitors may see colorful reef fish and coral below the surface, along with seabirds around the islet. Rays, sea turtles, and other marine animals are possible, but sightings are never guaranteed. See our Molokini Marine Life guide for species details and viewing tips.
Molokini Crater FAQs
Molokini is in the ʻAlalākeiki Channel, about three miles off Maui’s southwest coast between Maui and Kahoʻolawe.
Molokini is accessible only by boat. Most visitors join a permitted snorkeling or diving tour departing from Māʻalaea Harbor or Kīhei Boat Ramp.
Molokini isn’t a shore-entry destination. Its open-ocean location can bring strong winds, currents, and swell, so most visitors travel with an experienced, permitted boat operator.
No. Molokini Islet is a closed State Seabird Sanctuary, and entry is prohibited without a state permit. Visitors snorkel or dive from boats in the surrounding waters.
No. There are no restrooms, docks, food stands, drinking water, or other public facilities on the islet. Check what amenities your boat operator provides.
Boats use state day-use moorings to avoid damaging coral with anchors. Commercial operators must hold the required permits, and individual commercial moorings are available on a first-come, first-served basis. Recreational vessels have designated moorings and limited access to vacant commercial moorings. Anchoring is prohibited within the Molokini day-use mooring area. Private boaters should review the current DLNR day-use mooring rules before departure.
Molokini Shoal is a Marine Life Conservation District, and the islet is a State Seabird Sanctuary. Visitors may not enter the islet, take or injure marine life, remove or alter sand or coral, feed aquatic wildlife, or anchor where prohibited. Commercial activities require the appropriate permits. Review the official Molokini Shoal regulations and follow your captain’s instructions.
