Pine River Community Park

Located on the Little Spokane River, this 14.5-acre park features a footbridge and naturally sandy swim beach but has no lifeguards — so swim at your own risk. No entry fee.

BONUS: Laid-back, neighborhood park atmosphere that seldom attracts big crowds, though any place with access to water is likely to draw visitors during triple-digit heat. Restrooms hooked up to sewer this year so the park now has flush toilets, too.