OK, this sounds “real” but I will wait until some of the faster swimmers show up with the snorkel in fear of getting laughed out of the pool…then again, I could get one and become one of the faster swimmers (ah yes, the holy grail…)
Dev
When I took a lesson from Roch Frey, I saw a bunch of snorkels there for the masters swimmers. Then again, it may have been a tri group 
If it makes you feel any better, when I went snorkeling in Hawaii, I went w/ swim goggles SANS a snorkel. So maybe that evens me out.