I have a trip to Oahu coming up next week with my wife. Plans included Pearl Harbor, Scuba, kayaking, hiking, the surf competition on the north shore (watching of course), and probably a luau at PCC because I've never done a luau and it seems appropriate. However, I broke my arm a few weeks ago and am not sure if the cast will be off in time. We're staying near Kaneohe, but now I'm looking for a couple new ideas in case I have to avoid the water. Any suggestions?