Halona Blowhole is located on the southeast coast of Oahu just west of
Sandy Beach. Diving is possible along this coast only during
periods of light variable or northerly winds when there is NO
SURF. It is highly recommended to dive somewhere else if waves are
breaking. Strong erratic currents and surge within the cove make
getting back to the beach practically impossible. During tidal
exchanges the offshore waters experience a strong current called the
Moloka'i Express, that can drag a diver out to sea. Forget the
reef fronting the lookout as there's not much to see. Best
visibility is during high tide.
A large wedge-shaped reef just outside and right of the cove has an
interesting wall on the right side from 15 to 50 feet coated with Sinularia
Leather coral at the shallowest point. A variety of slugs,
corals, eels, and echinoderms can be seen along this wall and an
occasional Leaf Scorpionfish or Frogfish. The shoreline cliff
beyond the cove to the right ends at a point which should be the limit
of any shore diving here due to currents and distance. There's a
narrow chasm along the base of the cliff formed by a massive section of
rock that broke away from land and it is spectacular on a clear
day. Small caverns along the cliff can be interesting if the surge
is light. |