Pentagon is a marine reef and cave dive site located in Kona, Hawaii. The site features a reef structure with caves and is suitable for beginner divers. Divers typically experience depths ranging from 10 to 15 metres, with an average depth of 10 metres. Access to the site is by boat only. Conditions are generally stable, with visibility between 15 and 30 metres and mild currents. Water temperatures remain consistent throughout the year, ranging from 25 to 26 degrees Celsius. Divers should be aware of potential surge when navigating the reef and cave areas. A typical dive at this location lasts approximately 50 minutes.

Honoka'ope Bay is a black sand beach located within a gated community that permits public access. Snorkellers typically explore the rocky cliffs along the sides of the bay, where conditions are generally best. The site features both natural reef and artificial reef structures. Water temperatures range from 25C to 27C throughout the year. Access is via the shore, and the site is suited for intermediate snorkellers. Be aware of potential hazards including jellyfish, sharks, sharp coral, strong currents, surf, and surge. Facilities at the location include parking, toilets, and showers. A typical visit lasts approximately 120 minutes.

Turtle Mound in Kona is a shallow reef and cave system featuring lava tubes and interconnecting structures. Located 50 metres from shore, the site is accessible by both boat and shore entry. Divers typically experience depths between 1 and 5 metres, with an average of 4 metres. Conditions include mild currents and visibility ranging from 3 to 10 metres. Water temperatures remain consistent between 25 and 27C throughout the year. The site is suitable for beginners, with a typical dive duration of 40 minutes. Hazards include sharp coral and surge. Facilities available at the location include parking, showers, equipment rental, and guided tours.

Paniau North in Kona is a reef and cavern site accessible by both shore and boat. Shore entries are made through a small natural rock pool, while boat dives moor in approximately 10 metres of water. The topography features volcanic ledges, protruding fingers, arches, and small caverns located at depths of 9 metres and shallower. Divers regularly encounter green sea turtles resting on the ledges, alongside spotted eagle rays, day octopuses, and various moray eels including painted, snowflake, turkey, and yellow-edged species. Reef fish such as yellow tangs, Hawaiian convict surgeonfish, Pacific sailfin tangs, black durgeon, wrasses, moorish idols, and spotted boxfish are also common. Conditions include mild currents and visibility ranging from 18 to 50 metres.

Waialea Bay in Kona offers a shallow reef environment suitable for beginners, with depths ranging from 3 to 9 metres. The site features diverse coral topography, with the most developed reef structures located around the rocky points at the centre and ends of the bay. Shore entry is standard, and divers can expect mild currents and visibility between 3 and 10 metres. Marine life includes common sightings of wrasses, Ornate Butterflyfish, Bluefin Trevally, and various surgeonfish. Divers may also encounter uncommon species such as Green Sea Turtles, Spotted Eagle Rays, and several types of moray eels. Hazards include sharp coral, sea urchins, and surf conditions.

NudiMadness is a shallow reef site in Kona, United States, offering a relaxed shore entry. The site is well-suited for beginners, with depths ranging between 1 and 2 metres. Divers can expect mild currents and visibility typically between 3 and 15 metres. Water temperatures remain consistent throughout the year, ranging from 25C to 27C. Facilities at the site include showers for post-dive rinsing. Hazards to be aware of include surf, sharp coral, sea urchins, and periods of low visibility. The site is ideal for those interested in slow-paced, shallow-water exploration.

Kohala Coast near Kona offers a combination of natural reef and artificial reef structures. Divers can expect depths ranging from 9 to 24 metres, with an average depth of 14 metres. The site is accessible by both shore and boat, featuring mild currents and visibility typically between 15 and 30 metres. Water temperatures remain consistent throughout the year, ranging from 24C to 26C. The site supports night diving and is suited for intermediate divers. Facilities available in the area include air fills, equipment rental, guided tours, showers, toilets, and parking. Hazards to be aware of include boat traffic, deep sections, overhead environments, sharks, and sharp coral.

Outside Crystal Cove in Kona is a reef and pinnacle site accessible only by boat. The topography features a pinnacle with a top at 11 metres and a base at 21 metres, alongside a coral ledge leading toward a black sand cove. Divers can explore coral islands and search for small invertebrates and nudibranchs. Conditions are generally mild, though divers should be aware of potential surf and surge. Depths range from 6 to 21 metres with an average of 16 metres. Visibility at this site is between 2 and 8 metres. Water temperatures remain consistent throughout the year, ranging from 24 to 26 degrees Celsius.