Hi all-My family is going to the Florida keys this May. All my dad has is a very basic USDivers mfs set (aka open snorkel and short fins), and I'd like to get him something a bit better. He's not certified, so it'll just be for snorkeling, but I'm looking to see if anyone wants to sell a good condition dry" snorkel or men's Large/size 10 fins (11if they run small) ? Thanks, Kristina