Thanks to HUE and everybody for the interest!!! Sounds like this may actually become a reality.
A few necessary points:
The location I am speaking of most definitely has the other name of "Bird Island" (thanks Fisheater for the pic and details). I have not dove the site but I know that one of the staff at Aarons Dive shop has and probably could give us some more details as to where to enter the water.
I have been reading about it in a book entitled "Diving Hawaii and Midway" by Mike and Pauline Severns, pg 164.
The rock is eroded and apparently there are a few caves , one of which is huge, having a 10x10 ft entrance at 50 ft below surface, then running in 150 ft in and turning into a vertical crack with light streaming in. Sounds cool yeah!!!
The maps show a depth of 2-7 fathoms on the windward side of the island.
I think it will require a few things to do this safely:
Someone who has dove the site and can be our guide, and of course someone who can Capt the boat and pick us up when we surface. The water can be rough and current an issue.
Any further thoughts?
Jason