My final open water certification dive included some fun compass work, stuck in the pinky by a sea urchin, fun with some Christmas tree worms in the coral, and an out of air simulated surface drill. Luckily dramamine worked again this time, and a good ear soak with rubbing alcohol cleared out the swimmers ear that clearing a full-flooded mask left me with. And so much sleeping! I went home, ate a ton of food, passed out at about 4pm and didn't get up until the next morning.