When it gets really hot in Chittenden County, the locals head for the Bolton Potholes. Running alongside the road up to Bolton Valley Resort, Joiner Brook tumbles downstream to make five separate waterfalls. The stream’s curviness, and distance between individual potholes, makes the swimming area seem bigger and more private than it is. You can hang upstream, far from the madding crowd, or watch adolescent boys diving through an impossibly narrow chute of rock into a deep pool.