We did 10 days on a 474PC. I figure we did a typical "loop" including Anegada that added up to perhaps 85 miles or so. Running at 8-9 knots, we ended up with a fuel bill of $330 including generator use. I have lots of powerboat experience but zero sailing experience so that settled what boat we would charter. As for Anegada, just follow the channel or better yet, a mono which would ground out before a cat!