The places that don't make you apologize for the kids. Restaurants with crayons that aren't an afterthought, parks with shade and bathrooms, the ice-cream stop with the line on a hot Tuesday.
The lake's central activity hub inside the Seven Points Recreation Area — a large concrete sun deck, a sandy swim area built for crowds, a playground, and a trampoline in the water. Day-use passes are required, sold at automated pay stations or the visitor center.
A show cave on William Penn Highway with two connected cavern systems — winding passageways, flowstone, and thousands of stalactites, open daily year-round. The rainy-day answer for the Huntingdon end of the lake, not on the water itself.