Ke'e Beach is situated at the northernmost point accessible by car on Kauai, positioned directly beneath the Napali Coast cliffs. This shore-entry site features a shallow reef environment with an average depth of 1 to 2 metres, making it suitable for beginners. Visibility typically ranges between 5 and 15 metres. Water temperatures remain consistent throughout the year, fluctuating between 24C and 27C. Visitors should be aware of potential hazards, including surf, strong currents, and sharp coral. Facilities available at the site include parking, toilets, and showers.

Tunnels Beach, also known as Makua Beach, is a shore-access site on the north coast of Kauai featuring a complex reef system with caves and drop-offs. Located 50 metres from the shore, the site reaches depths of 1 to 6 metres, with an average of 4 metres. Conditions vary, with visibility ranging from 3 to 12 metres and strong currents present. Due to the presence of surf, rip currents, and overhead environments within the cave structures, this site is suited for intermediate divers and snorkellers. Facilities at the beach include parking, toilets, and showers. Divers and snorkellers should be aware of sharp coral and sea urchins in the area.

Mana Crack is an 11-mile long sunken barrier reef located off the coast of Niihau. As the furthest offshore dive site in Hawaii, it features numerous drop points along its length. Due to the absence of moorings and the presence of strong currents, this site is strictly for advanced divers and is accessed exclusively via live boat dives. Visibility at the site varies, ranging from 1 to 30 metres. Water temperatures remain consistent throughout the year, typically between 24C and 27C. Divers should be prepared for challenging conditions at this remote offshore location.

Hideaways Beach, also known as Pali Ke Kua, is a reef site in Kauai featuring spur and groove reef formations. Divers and snorkellers can explore depths ranging from 3 to 15 metres, with an average depth of 5 metres. Access is via a steep trail from the shore or by kayak. Conditions vary, with visibility typically between 5 and 20 metres and moderate currents. The site is suitable for intermediate divers. Hazards include surf, rip currents, strong currents, sharp coral, jellyfish, and sharks. Water temperatures remain consistent throughout the year, ranging from 23C to 26C.

Hale O Honu, also known as the House of Turtles, is a reef site in Kauai featuring 11 moorings spread across 8 acres. The topography consists of sand, lava crevices, and outcroppings. Divers can expect depths ranging from 6 to 20 metres, with an average depth of 12 metres. Access is by boat only. Conditions are generally mild with visibility around 15 metres. Divers should be aware of potential hazards including sharp coral and surge. This site is suitable for beginners.

Anini Beach features one of the longest and widest fringing reefs in Hawaii, creating a shallow lagoon environment. The site is suitable for beginners, with depths ranging from 2 to 5 metres and an average depth of 3 metres. Access is via the shore, and the area includes facilities such as parking, toilets, and showers. Divers and snorkellers should be aware that conditions can vary, with potential hazards including strong currents, rip currents, surf, and sharp coral. Visibility typically ranges between 5 and 15 metres, and a standard dive lasts approximately 60 minutes.

Salt Pond Beach Park on Kauai features a naturally protected lagoon suitable for both diving and snorkelling. The site consists of a reef environment with depths ranging from 1 to 10 metres, averaging 5 metres. Snorkelling is best in the rocky coves located on the far east side of the beach. Conditions vary, with visibility typically between 5 and 15 metres and mild currents. Shore access is available, and the site is suitable for beginners. Hazards include jellyfish, sharp coral, strong currents, and surf. Species recorded around this area include wrasses, Hawaiian convict surgeonfish, bluespine unicornfish, wedgetail triggerfish, butterflyfish, spotted boxfish, moorish idols, moray eels, green sea turtles, and Hawaiian monk seals.

Hale O Honu is a reef and artificial reef site located in Kauai, United States. Accessible only by boat, the site features depths ranging from 6 to 18 metres with an average of 12 metres. Divers encounter mild currents and visibility between 15 and 50 metres. The site is home to a variety of marine life, including Spanish Dancer, Painted Moray, Leaf Scorpionfish, Chromodoris Nudibranch, Zebra Moray, Yellow-edged Moray, White-spotted Octopus, Snowflake Moray, Hawaiian Convict Surgeonfish, Banded Coral Shrimp, sea slugs, wrasses, pufferfish, and Speckled Butterflyfish. Typical dives last 50 minutes. Hazards include sharp coral and surge. The site is suitable for intermediate divers.