Did a great dive at the Blowhole Sat 11 Apr 15 with 5 other instructors from Dive Oahu.  Picked 20#s of debris out of the ocean.  Mostly fishing gear, but the debris included parts of a lawn chair, the top to a kettle grill, and an Asian soup spoon.  Easy to organize, fun to do, and it makes a difference.  Had lots of interest from the tourists coming to see the Blowhole.  They were "shocked" to see six divers coming out of the surf with mesh bags, a chair frame, and a grill top!