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 family beach, at the north end off Route 5A — a long sand crescent with a gradual drop-off, bathhouses, and Mount Pisgah's cliffs framing the far shore. Parking is free, at least for now; Westmore has floated charging for it, so don't assume that stays true forever. This is the default swimming spot for anyone with small kids, since the bottom doesn't fall away a few feet from shore.
A fifteen-foot cascade on the Willoughby River in Barton, not Westmore — easy to miss, since most of the drop is only partly visible from the East Street bridge. Park at the river access area, walk the short dirt road upstream, and take the stairs down; ten minutes round-trip, easy grade. Rainbow trout run up from Barton and skip the falls each spring, which is the one thing worth timing a visit around.