I think that they do make you wear the vest at the snorkeling area, but you can use your own snorkel gear. I have a custom mask with my prescription ground in to the lenses, so I wear that and just rent flippers. Frankly, the vest isn't that bad - you can inflate it and be lazy! Or deflate it totally and go down as much as you want.
Does anyone know if the mailbox is still down there? I'm thinking of putting a letter in a ziplock in it and seeing if it ever gets sent...
I have to admit (a little smugly, perhaps) that since I'm from New England, where it hasn't gotten above freezing for days, and it's been near or below zero each night... AND where the ocean temp doesn't hit 60 degrees on a WARM day in the summer... I'm bringing my bathing suit and snorkel mask. If it's above 60 degrees, I can handle it. (I seem to remember that on my last summer trip to Cape Cod, the ambient temp was about 98 or 99 degrees... and the water temp was 55.
Two days to GO!!! WAHOO!!!
Look for the pale northerner wearing a Superbowl Champion Patriots ball cap and a big grin! (well, a bathing suit,too...) (the radio just announced a winter storm warning for tomorrow night - I hope Logan Airport doesn't get closed again!)
Ross