Hey Aaron, just to let you know we have an open slot for Saturday12/21, I know you originally wanted to dive on the 21st, so if you want to switch or dive both days, that is fine. I will be diving 20, 21 and 22nd. so whatever date works out the best for you. The other guys diving(John and Sai) are both good divers, have all their own gear and should be fun. If you have any questions feel free to call, looking forward to diving.