Crescent Reef in Kona is a combination of natural reef and artificial structures. The site offers depths ranging from 5 to 27 metres, making it accessible for beginners. Divers can expect mild currents and visibility typically between 24 and 30 metres. Entry to the water is possible via both shore and boat. Water temperatures fluctuate throughout the year, ranging from 24C to 27C. Typical dives at this location last approximately 45 minutes. Due to the nature of the marine environment, divers should be aware of the potential for sharks and strong currents in the area.

Alakaha Bay is a shore-entry reef dive located in Kona, United States. The site features shallow depths ranging from 3 to 9 metres and offers consistent visibility of 30 metres. Water temperatures remain stable between 25 and 28 degrees Celsius throughout the year. Divers should be prepared for moderate currents and exercise caution during entry and exit due to surf, shore break, and sharp coral on the seabed. Scouting the entry point and timing movements with the swell is recommended. Reef booties and gloves are advised to protect against the rocky, coral-rich shoreline.

Two Step in Kona is a popular shore-entry reef site offering depths ranging from 2 to 30 metres, with an average depth of 5 metres. The site features a coral seabed and is suitable for beginners. Divers and snorkellers frequently encounter wrasses, yellow tangs, Pacific orange-spine unicornfish, guineafowl puffers, ornate butterflyfish, moorish idols, spotted boxfish, fourspot butterflyfish, and black durgeon. Less common sightings include painted, snowflake, zebra, and turkey morays, along with Achilles tang. Conditions vary with visibility between 5 and 30 metres and moderate currents. Hazards include boat traffic, deep water, entanglement, sea urchins, sharp coral, surf, and surge. Facilities include parking, toilets, showers, changing rooms, and a rinse station.

Two Step in Kona is a diverse marine site featuring a reef, drop-off, and canyon topography. Divers and snorkellers access the water via a shore entry. The site ranges in depth from 2 to 30 metres, with an average depth of 15 metres. Conditions generally include mild currents and visibility between 10 and 40 metres. Water temperatures remain consistent throughout the year, ranging from 24C to 27C. Hazards to be aware of include boat traffic, potential surf and surge, and the presence of sea urchins. Typical dives last approximately 45 minutes. Facilities available at the site include parking and toilets.

Golden Arches is a reef site located 8000 metres offshore from Kona, United States. Accessible only by boat, the site features a depth range of 2 to 14 metres with an average depth of 11 metres. Divers and snorkellers can expect mild currents and visibility ranging from 10 to 30 metres. Water temperatures remain consistent between 25C and 27C throughout the year. The site is suitable for beginners, with typical dives lasting 45 minutes. Hazards at this location include boat traffic, sea urchins, and sharp coral. Facilities available in the area include parking, toilets, showers, a dive shop, and boat charter services.

Crescent Beach in Kona is a reef site suitable for beginners, offering an average depth of 12 metres. Divers can access the site via shore or boat, with visibility typically ranging between 15 and 30 metres. The site features mild currents and is suitable for night diving. Marine life recorded here includes common wrasses and slate pencil urchins. Less frequently encountered species include the painted moray, yellow tang, bluefin trevally, black durgeon, ornate butterflyfish, fourspot butterflyfish, pinktail triggerfish, Pacific orange-spine unicornfish, and bird wrasse. Rare sightings include the Potter's angelfish, turkey moray, and Achilles tang. Facilities include showers. Be aware of hazards such as boat traffic, sharp coral, and surf.

Kealakekua Bay is a reef site located on the west coast of the Big Island, offering depths ranging from 2 to 36 metres. The site is suitable for beginners, with an average depth of 10 metres allowing for varied skill levels. Visibility typically spans 10 to 30 metres, and water temperatures remain between 24 and 27 degrees Celsius. Access is by boat only, and divers should be prepared for moderate currents and surge near the reef. Hazards include boat traffic, so divers should remain vigilant near the surface and use a delayed surface marker buoy. Showers are available at the site.

Captain Cook Monument in Kona is a reef site offering depths between 1 and 30 metres, with an average of 7 metres. The site features a rich coral seabed and is accessible by both boat and shore. Divers and snorkellers frequently encounter Turkey Moray, Achilles Tang, Yellow Tang, Black Durgeon, and various wrasses, groupers, and parrotfish. Whitetip Reef Sharks and Yellow-edged Moray are also recorded here. Conditions include mild currents and visibility ranging from 15 to 30 metres. Water temperatures remain stable between 24 and 27 degrees Celsius. Hazards include boat traffic, deep water, sea urchins, sharp coral, and potential strong currents.