The Blow Hole

Hawaii, United States

Depth

30m

Visibility

- - -

Entry

Boat

Experience Level

Experienced

The Blow Hole

Hawaii, United States

Depth

30m

Visibility

- - -

Entry

Boat

Experience Level

Experienced

About The Blow Hole

The Locals call this place TOILET BOWL. DO NOT try to exit the same place you entered the hole. Go south about 35 meter and get out on the point of rocks south of the little inlet. This is best if the surf comes up but be careful as this is for advanced divers only Directions: On the Big Island, go North on Highway 19 from Kailua Kona about 7 miles to Natural Energy Road (Last road West before the Airport). Drive about 1 mile West to the point where the paved road turns north. Turn South on the Dirt road. Drive (VERY CAREFULLY) about 500 yards to a gate which should be open during the day. Go about 100 yards past the gate and look to the ocean. You will see 3 large lava heads along the ocean. Within the lava heads is a cove with an arch on the ocean side which is partially submerged. There is a nice exit on the South side of the hole right by a rusted piton which is there. Gear up and jump in to the cove. Drop down to the bottom, about 4.5 meter, and swim out under the arch.

The Blow Hole Dive Info

Terrain & Features

Cave, Reef

Entry Type

Boat

Max Depth

30m

Visibility Range

— – —

Experience Level

Experienced

Best Gas Mix

21% – 35%

O₂

CNS Load (25 min)

16% at 28m / 36%

O₂

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Marine Life

Jewfishes

Weather Conditions

Water Temperature ℃

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Location

Dive Site Hazards

Remote Silt Disturbance — Silt can be disturbed metres away from the source.
Rapid Stress Escalation — Stress can increase sharply when visibility or navigation degrades.
High Cognitive Load Navigation — Complex passages increase mental workload even on a line.

Hidden Depth Variations — Complex reef topography can conceal depth changes, leading to unintended profile variations.

Distraction from Marine Activity — High fish activity can distract divers and delay depth or gas awareness.

Rapid Surge Direction Changes — Surge near reef structures can reverse direction quickly, pushing divers sideways into unexpected areas.

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