

Best for intermediate divers, 9-18m, boat entry, mild current.
Big Arch in Kona is a reef and cave site featuring a distinct archway formation. Divers typically explore the area at depths between 9 and 18 metres, with an average depth of 12 metres. The site is accessible only by boat and is suited for intermediate divers due to the presence of surge and sharp coral. Visibility ranges from 15 to 30 metres, and water temperatures remain stable between 25C and 27C throughout the year. Marine life frequently encountered includes wrasses, Raccoon Butterflyfish, Speckled Butterflyfish, African Clown Wrasse, Turkey Moray, and Day Octopus. Divers may also occasionally spot Spotted Eagle Ray, Whitetip Reef Shark, and various moray eel species.
19.68960, -156.03900
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Recorded at this site
Depth
9-18m
Visibility
15-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
25-27°C
Current
Mild
Typical Dive
50 min
Divers regularly encounter wrasses, Raccoon Butterflyfish, Speckled Butterflyfish, African Clown Wrasse, Turkey Moray, and Day Octopus. Less common sightings include Spotted Eagle Ray, Whitetip Reef Shark, Leaf Scorpionfish, and several moray eel species.
No, this site is rated for intermediate divers. The presence of surge and sharp coral requires a higher level of buoyancy control and awareness.
The site ranges from 9 to 18 metres in depth, with an average depth of 12 metres.
Big Arch is a boat-only dive site; a boat is required to reach the location.
Conditions include mild currents and visibility between 15 and 30 metres. Divers should be aware of potential surge, sharp coral, and boat traffic in the area.
Diving at Big Arch in Kailua-Kona requires the following certifications: Open Water. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at Big Arch in Kailua-Kona. Water temperatures range from 25°C to 27°C.