The nonprofit Yosemite Conservancy (tel. 209/379-2317; www.yosemiteconsercancy.org) offers dozens of Outdoor Adventures, covering subjects from backpacking to natural history, to photography. Most of the programs are multiday, with charges of about $100 per person per day (not including lodging and meals), and often include hikes or backpacking trips.
Part of concessionaire DNC Parks & Resorts at Yosemite, Yosemite Mountaineering (tel. 209/372-8344; www.yosemitemountaineering.com) offers a variety of guided climbing and backpacking trips.
Southern Yosemite Mountain Guides, based in Santa Cruz (tel. 800/231-4575; www.symg.com), offers hiking, backpacking, fishing, and rock-climbing trips. Trips last from a day to over a week; prices run about $150 to $200 a day.
Austin-Lehman Adventures, based in Billings, Montana (tel. 800/575-1540; www.austinlehman.com), offers guided family-oriented multiday hiking tours in Yosemite. Five-night trips run about $1,900 to $2,500 per person, lodging included.
Backroads, based in Berkeley (tel. 800/462-2848 or 510/527-1555; www.backroads.com), offers a variety of guided biking and hiking tours in the Yosemite area. Rates are about $2,500 to $3,500 per person for 6 days.
The World Outdoors, based in Boulder, Colorado (tel. 800/488-8483 or 303/413-0938; www.theworldoutdoors.com), offers a variety of trips, including multisport adventures that feature hiking and biking in Yosemite. Rates range from $1,900 to $2,600 per person for 6 days.
Additionally, the Evergreen Lodge has excellent in-house recreation programs that include guided trips in and around the park.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.