Swimming

Waterton Health Club. The club has an 18-meter (56-foot) saltwater pool, a hot tub, a sauna, and a gym. Towels are provided. Waterton Lakes Lodge Resort, 101 Clematis Ave., Waterton Townsite, Alberta, T0K 2M0. 403/859–2150; 888/985–6343; watertonlakeslodge.com. C$18.90/week. Daily 7 am–10 pm.

Waterton Lakes. The lakes are chilly year-round, but they're a great place to cool off after a long hot day of hiking. Most visitors can only handle dipping in a toe or two, some wade, and a few brave souls join the "polar bear club" and plunge in completely. Waterton Townsite, Alberta. Free.