Shark Fin Cove in Maui is a remote reef site defined by a shark-fin shaped rock formation located in the centre of the cove. The topography features dramatic underwater arches and deep blue water. Snorkellers can explore depths ranging from 3 to 15 metres, with an average depth of 9 metres. Access to this site is by boat only. Conditions vary, with visibility typically between 10 and 30 metres. The site is suited for intermediate snorkellers due to the presence of moderate currents and potential surf. Water temperatures remain consistent throughout the year, ranging from 25 to 27 degrees Celsius.

Located 1500 metres offshore in Maui, this reef site offers a consistent depth of 9 metres. Access to the site is exclusively by boat. The water temperature remains stable throughout the year, ranging between 25C and 28C. Given the shallow and uniform depth, the site is suitable for beginner divers. There is no specific marine life data available for this location. Divers should be prepared for boat-based operations when planning a visit to this reef.

Monolith is a pinnacle and reef site located 12.8 kilometres off the coast of Maui. This advanced dive site features depths ranging from 12 to 33 metres, with an average depth of 25 metres. Divers must be prepared for strong currents that sweep the structure, making it essential to time descents around slack water. Visibility is typically excellent, ranging between 30 and 45 metres. Access is strictly by boat, and divers should remain close to the entry point throughout the 45-minute dive. Due to the depth and current conditions, this site is suitable only for experienced divers capable of managing drift and depth.

Cathedrals 2 is a reef and cavern dive site located off the coast of Maui. This site features a complex underwater topography requiring boat access. Divers should be prepared for an overhead environment and potential surge conditions. The site reaches depths between 25 and 75 metres, with an average depth of approximately 50 metres. Visibility at this location typically ranges from 24 to 30 metres. Due to the depth and the nature of the cavern environment, this site is suited for intermediate divers. Typical dive times are around 60 minutes. Water temperatures fluctuate between 22C and 24C throughout the year.

Wash Rock in Maui is a reef site featuring a lava tube and a sand channel. Divers can explore the lava tube before crossing the sand channel to reach the main rock formation. The site reaches depths of 21 metres with an average of 18 metres. Conditions include moderate currents and visibility ranging from 4 to 9 metres. Entry is possible from both shore and boat. The site is suitable for beginners, with typical dives lasting 50 minutes. Divers should be aware of the overhead environment within the lava tube. Facilities available include parking, toilets, showers, changing rooms, rinse stations, air fills, equipment rental, and guided tours.

Second Cathedral is a cavern and pinnacle site located 12.8 kilometres off the coast of Maui. Divers typically descend onto a pinnacle before navigating into the central hall of the cavern. The site features an overhead environment and reaches depths between 9 and 30 metres, with an average depth of 18 metres. Due to the presence of strong currents and the overhead nature of the cavern, this site is suited for intermediate divers. Visibility ranges from 15 to 45 metres. Access is by boat only, and dives typically last 60 minutes. Hazards include deep water, overhead environments, sharp coral, and strong currents.

Knob Hill is a marine dive site located at Molokini Crater, featuring a combination of reef, drift, and cave topography. Divers typically experience depths ranging from 7 to 18 metres, with an average depth of 12 metres. Access to this site is exclusively by boat, as it is situated approximately 1000 metres from shore. Conditions at this location are variable, and divers should be prepared for strong currents, which are a known hazard. A typical dive at this site lasts around 40 minutes. Due to the current and site characteristics, this location is best suited for intermediate divers.

Hulopoe Bay is a protected Marine Life Conservation District featuring a crescent beach and a rocky reef. Snorkelling is best along the reef on the east side of the bay near the tide pools. The site is suitable for beginners, with depths ranging from 1 to 7 metres and an average of 4 metres. Visibility is high, typically between 30 and 46 metres. Divers and snorkellers regularly encounter wrasses and redlip parrotfish. Other species recorded here include Achilles tang, black durgeon, bluefin trevally, yellow tang, guineafowl puffer, bird wrasse, palenose parrotfish, freckled hawkfish, Hawaiian convict surgeonfish, moorish idol, Pacific bullethead parrotfish, and groupers. Be aware of boat traffic, rip currents, and surf.