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.

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.

Puko'o Beach on Maui is a shallow, sheltered site defined by a wide reef flat and seagrass beds. The area is suitable for beginners, offering a calm environment for shore entries. Visibility at this location typically ranges from 12 to 40 metres, with water temperatures fluctuating between 24C and 27C throughout the year. Currents are generally mild, though divers and snorkellers should remain aware of potential hazards, including jellyfish, sea urchins, and sharp coral. The site provides a accessible coastal experience for those seeking shallow water exploration.

Papohaku North Point is a rocky reef site on Oahu that features dramatic underwater topography. Snorkeling is restricted to rare flat-calm summer days, as the area is subject to strong currents, surf, and rip currents. Due to these challenging conditions, the site is suitable only for advanced snorkelers. Entry is via the shore. Facilities available at the location include parking, toilets, showers, and changing rooms. Divers and snorkelers should exercise caution regarding sharp coral and the potential for strong water movement. Visibility at this site can reach up to 43 metres, with water temperatures ranging between 24C and 27C throughout the year.

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.

Nanahoa, also known as Five Needles, features dramatic sea stacks rising from the seafloor off the coast of Maui. The site is defined by vertical underwater walls and pinnacles that create a complex topography. Divers and snorkellers can explore depths ranging from 3 to 9 metres, with an average depth of 6 metres. Access is by boat only, as the site is located 2000 metres from shore. Conditions include moderate currents and visibility between 30 and 45 metres. The site is suitable for intermediate divers and offers a snorkel rating of 4 out of 5. Be aware of potential surf and surge when planning your visit.