I recently learned that there is a LOT to do in terms of extreme activities at or around Dillingham Field on the North Shore of Oahu.

A non-exhaustive list of possibilities:
1. Tandem skydiving
2. Sailplane ride
3. Ultralight flying
4. Shark encounter
5. Catamaran sailing

Which of these would you do if you were going? For those of you who have already done some of these, which one gives the most bang for your buck? Any more extreme activity suggestions?