Hi,
The walk is about a half a mile.
Yes, you can walk from YC/BC to Boardwalk. Depending on your exact start and stop points figure about one-quarter to one-half mile.
Is it really a half mile? Wow. It doesn't seem that long.

Yacht Club is a little further than Beach Club...I never walked or timed that one.YC is closest to Epcot, BC next, then on the other side BW.
It's not a bad walk at all.![]()