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.

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.

Manele Bay is a reef site located adjacent to the small boat harbour. The topography features a diverse reef structure, with coral growth most abundant along the cliffs on the sides of the bay where the bottom drops off. Depths range from 3 to 40 metres, and visibility varies between 10 and 40 metres. The site is accessible by both shore and boat, making it suitable for beginners. Conditions include mild currents, though visitors should be aware of potential hazards including jellyfish, sharks, strong currents, and surf. Facilities available at the site include parking, showers, toilets, and a rinse station.

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.

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.

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.

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.

Fish Rock is a shallow pinnacle and reef located 45 metres from shore at Molokini Crater. The site features a top covered in soft moon corals that move with the water. Divers and snorkellers can expect mild currents, though conditions may include surge and surf. Visibility is generally high, reaching up to 100 metres. Access to this site is by boat only. The location is suitable for beginners, though visitors should remain aware of potential strong currents in the area. Facilities available at the site include toilets, showers, and changing rooms.