Rafting and Kayaking

White-water rafting trips fill up fast in high season, so it’s a good idea to book with an outfitter a couple of days (if not weeks) in advance. Early-season trips in May catch the biggest runoff and the wilder rides, while late-season excursions (in August) will be tamer.

Outfitters

Rapid Transit Rafting. This outfitter leads full-day rafting trips on the Colorado River and half-day trips on the Cache la Poudre River. 161 Virginia Dr., Estes Park, Colorado. 970/577–7238; 800/367–8523; www.rapidtransitrafting.com. $75 for half day, $120 for full day. Closed Sept.–mid-May.