A couple of years ago, I wrote some guides to stuff around Falmouth Bay. Although the 2013/14 winter storms have changed a couple of the transits, the info is still good.
http://www.slideshare.net/AtlanticSc...hs-shore-dives
I have re-vamped the Snorkel guide, with more up to date transits and new sites.
http://www.slideshare.net/AtlanticSc...-falmouth-rev2