Hey, why didn't somebody tell me that swimming with a snorkel is a whole new skill! I almost drowned in the first half-lap. I went back to the locker room and grabbed my noseplugs. That helped, but I could still only manage 2 laps before getting too frustrated to try any longer. Maybe I'll get the hang of it in a few weeks, but it's sure not the instant bliss I thought it would be.
Keep your eye on eBay ;-).