Sheraton Caverns in Kauai consists of a system of partially collapsed lava tubes, archways, and partial overhangs. This marine site offers a variety of swim-throughs and nooks within the volcanic rock formations. Depths range from 6 to 21 metres, with an average depth of 12 metres. Access is by boat only, located 365 metres from the shore. Conditions include mild currents and visibility between 12 and 30 metres. The site is suitable for beginners and supports night diving. Divers should be aware of hazards including boat traffic, the overhead environment of the caverns, and surf conditions. Typical dives last approximately 60 minutes.

Poipu Beach on Kauai is a popular shore-entry snorkel site featuring a shallow reef environment. The area offers depths ranging from 1 to 4 metres, with an average depth of 3 metres, making it well-suited for beginners. Snorkellers can expect visibility between 5 and 15 metres. Water temperatures remain consistent throughout the year, ranging from 24C to 27C. Facilities at the beach park include parking, toilets, showers, and equipment rental. While the site is accessible, visitors should be aware of potential hazards including surf, rip currents, strong currents, and sharp coral. Typical snorkel sessions last approximately 45 minutes.

Fast Lanes is a drift dive site located off the coast of Kauai. The topography consists of a reef and artificial reef structure. Divers can expect depths ranging from 14 to 27 metres, with an average depth of 21 metres. Access to this site is by boat only. Conditions at this location are subject to strong currents, which require careful planning and experience. Hazards include sharp coral and the potential for strong currents. Due to the nature of the drift and current conditions, this site is best suited for experienced divers.

Koloa Landing in Kauai is a shore-entry reef site suitable for beginners. Divers and snorkellers can explore depths ranging from 3 to 18 metres, with an average depth of 10 metres. Conditions vary, with visibility typically between 15 and 30 metres and mild currents. The site is accessible for night diving, with typical dives lasting around 45 minutes. Hazards to be aware of include boat traffic, surf, surge, and potential for low visibility. Facilities at the location include parking and toilets.

Three Fingers is named for the three distinct lava formations that characterise the underwater topography. Located just outside the harbour on Kauai, this site is accessible by boat or shore entry. Conditions at the site are variable, with visibility ranging from 7 to 30 metres and currents that can be strong. Due to the potential for strong currents, this site is suited for advanced divers. Water temperatures remain consistent throughout the year, typically between 24 and 27 degrees Celsius. Divers should be prepared for changing conditions when planning their visit to this lava-formed site.

Fish Bowls in Kauai is a diverse dive site featuring a combination of reef, artificial reef, and canyon topography. Divers can expect depths ranging from 14 to 29 metres, with an average depth of 21 metres. Access to this site is by boat only. Conditions are variable, with moderate currents and visibility typically between 15 and 30 metres. The water temperature ranges from 23 to 26 degrees Celsius throughout the year. Due to the presence of sharp coral, strong currents, and potential surf, this site is best suited for intermediate divers. A typical dive duration at this location is 45 minutes.

Lawai Beach in Kauai is a shore-access reef site situated directly in front of the Beach House Restaurant. The reef lies close to the shoreline, allowing for an accessible swim to explore the underwater topography. Snorkellers typically spend around 45 minutes in the water, which maintains temperatures between 24C and 27C throughout the year. Visibility at this site varies between 3 and 10 metres, with an average depth of 3 metres. Due to the presence of surf, rip currents, and sharp coral, this site is best suited for intermediate-level snorkellers. Facilities including parking, toilets, and showers are available for visitors.

Sculpted Reef in Kauai is a shallow shore dive site with an average depth of 7 metres. The site is suitable for beginners, offering a straightforward entry from the shore. Divers should be aware of mild currents and potential surge, as well as sharp coral present in the area. Visibility at this location varies significantly, ranging from 5 to 30 metres depending on conditions. A typical dive at this reef lasts approximately 45 minutes. Given the nature of the terrain, careful buoyancy control is recommended to avoid contact with the reef structure.