Dixie Maru Cove is a sheltered, crescent-shaped site on the west end of Oahu. This shore-entry location features a reef-protected environment containing the wreck of the Dixie Maru and an old anchor. The site is suitable for beginners, though conditions vary with potential hazards including surf, rip currents, strong currents, and low visibility. Divers and snorkellers may encounter a variety of reef fish and invertebrates typical of the Hawaiian marine habitat. Facilities at the site include parking and showers. With a snorkel rating of 4/5, it provides a accessible experience for those exploring the reef and wreck structures.

Hale O Lono Harbor is a remote man-made harbour located on the southwest coast of Oahu. The site features a combination of reef and artificial reef structures, with a rocky bottom situated near the breakwalls. Divers can expect depths ranging from 2 to 13 metres, with an average depth of 7 metres. Access is via a shore entry from the adjacent white sand beach. Conditions at this site are variable, with moderate currents, surf, and visibility typically between 3 and 8 metres. Due to the presence of strong currents, surf, and hazards such as jellyfish, sea urchins, and sharp coral, this site is best suited for intermediate divers.

Kaunakakai Wharf offers a distinct muck snorkeling experience situated directly beneath the main pier. The site features a sandy and silty bottom, providing a habitat for various invertebrates and macro life. With an average depth of 3 metres and a range of 1 to 5 metres, it is well-suited for beginners. Entry is via the shore, and conditions typically include mild currents and visibility ranging from 2 to 5 metres. Due to the location, snorkelers should remain vigilant regarding boat traffic. The water temperature remains consistent throughout the year, ranging between 24 and 27 degrees Celsius.

One Ali'i is a shore-entry snorkel site located on Maui, Hawaii. The area features shallow, reef-protected water that serves as a practice spot for beginners. Conditions are generally mild, though visibility can be low at times. The site is equipped with parking, toilets, and showers for visitor convenience. Snorkellers should exercise caution regarding sharp coral present in the area. The water temperature ranges from 24C to 27C throughout the year, providing a consistent environment for those learning to snorkel in a sheltered setting.

Moloka'i Outer Reef is a marine reef site located 1000 metres offshore from Maui. This site is accessed exclusively by boat and is suitable for intermediate divers. The average depth is 12 metres, with typical dives lasting around 50 minutes. Divers should be prepared for moderate currents and surf conditions. Visibility at the site ranges from 15 to 30 metres. The reef environment supports a variety of reef fish and invertebrates typical of the Hawaiian region. Hazards at this location include sharks, sharp coral, strong currents, and surf. Boat charters and guided tours are available for those planning to visit this offshore reef.

Kamalo Wharf on the south shore of Maui offers access to a massive fringing reef and an artificial reef environment created by pier pilings. Divers and snorkellers can explore the reef wall and the structure of the wharf, which supports a variety of tropical reef fish and invertebrates. The site is suitable for intermediate divers, with depths starting at one metre. Access is available from both shore and boat. Conditions are generally mild, though visitors should be aware of potential rip currents and sharp coral. Water temperatures remain consistent throughout the year, ranging from 25C to 27C.

Makapu'u Beach Park on Oahu offers a varied underwater landscape featuring reefs, walls, caves, and caverns. This shore-entry site is suited for intermediate divers due to the presence of strong currents, rip currents, and surf. Depths range from 4 to 18 metres, with an average of 12 metres. Visibility is highly variable, ranging from 3 to 30 metres. The site is accessible for night diving. Facilities available at the park include parking, toilets, showers, and a rinse station. Divers should be aware of hazards including jellyfish, sharp coral, and overhead environments within the caves and caverns.

Rabbit Island features a combination of reef, drop-off, and wall topography located 1200 metres off the windward coast of Oahu. Divers encounter depths between 8 and 21 metres, with visibility ranging from 10 to 24 metres. The site is defined by strong currents that require advanced skills and precise buoyancy control. Marine life includes very common crabs and snails, common hermit crabs and Pacific white-spotted sea cucumbers, and uncommon sightings of yellow-edged moray, wrasses, Hawaiian convict surgeonfish, wedgetail triggerfish, sergeants, and sea cucumbers. Due to hazardous surf and shore break, boat access is mandatory. Divers must remain alert for sharks and manage air consumption carefully against the current.