There are a lot of fish here because of the heat outlet from the power plant near by.  Don;t worry, its just heat, not toxic waste or anything.  This is probably the best place to snorkel on Oahu, but the conditions have to be flat because there is a large shore break.  Also, if there are spear fishermen, they will scare off the fish. 
Facts about Kahe Point
 It is in United States- Kahe Point is in the Pacific.
 - The typical depth is 0-30 Metres 0-100 Feet.
 - The typical visibility is 3-10 Metres 10-30 Feet.