I was going to say this one too.
Plus they have a bonfire around 6-7 p.m. and you can make marshmellows.
The boardwalk has jugglers, mime's, magicians, etc. from 6-9 p.m.
The campground has bow and arrows to shoot, that you can do around 1:00 p.m. in the afternoon. I would call about this one though, it may have a fee. You shoot at big round targets.
Ride the mono-rail from Epcot to the TTA center. Get off and Ride the mono-rail around the resorts and visit some of the mono-rail resorts. The Contemporary has the best arcade-but so does PORS.