Bikes are allowed on some trails, such as the 3-km (2-mile) Townsite Loop Trail. A great family bike trail is the 4.3-mile (one-way) paved Kootenai Brown Trail, which leads from the townsite to the park gates along the edges of the lakes. A ride on mildly sloping Red Rock Canyon Road isn't too difficult (once you get past the first hill). The Crandell Loop trail provides a slightly more challenging ride for mountain bikers.
Pat's Waterton. Choose from surrey bikes, mountain bikes, or motorized scooters at Pat's, which also rents tennis rackets, strollers, and binoculars. 224 Mt. View Rd., Waterton Townsite, Alberta. 403/859–2266; www.patswaterton.com. From $10.