Here are some places where you can take on the outdoors by foot. Note that many ski resorts that have Nordic centers also offer snowshoeing.
Rim Nordic Ski Area, Snow Valley: This cross-country and snowshoeing center is on Highway 18 between Running Springs and Big Bear Lake. Equipment rentals are $8 to $15, trail passes are $10 to $17 (kids 10 and younger are free). Lessons available. (909) 867-2600, http://www.rimnordic.com.
Big Bear Discovery Center, Big Bear Lake: Outdoor adventure center, operated by the nonprofit San Bernardino National Forest Assn., offers three-hour training and fun snowshoe trips on Saturdays and Sundays, weather permitting. Adults are $35 and kids are $25. Equipment and local transportation included, (909) 382-2790, http://www.nationalforestassociation.org/bigbeardiscoverycenter.php.
Sierra Club: Winter snow sports outings, including snowshoe trips, (213) 387-4287, http://www.angeles.sierraclub.org/index.asp.
REI Outdoor School: Sports outfitter schedules snowshoe training courses and trips throughout the winter, $75 for members, $95 for nonmembers, (909) 646-8360, http://www.rei.com/outdoorschool/162.
Mammoth Mountain: Play in the woods at Tamarack Nordic Center, where snowshoe trails, lessons and naturalist-led trips are available. Day passes are $15-$27, rentals available, (760) 934-2571, http://www.mammothmountain.com/MountainActivities/WinterActivities/CrossCountrySkiing.
Yosemite National Park: All trails in the park are open to winter use; rentals are available at the Cross-Country Center and cost $18.50-$22.50. Maps available at the center or from the Badger Pass Ranger Station, (209) 372-8444, http://www.yosemitepark.com/BadgerPass_Snowshoeing.aspx.
Bear Valley Mountain Resort: This Central Sierra Nevada ski area, in the Stanislaus National Forest between Lake Tahoe and Yosemite, offers a variety of guided snowshoeing trips, including a half-day trip planned for showshoers and their dogs ($50). (209) 753-6556, http://www.mtadventure.com/pages/snowshoeing.html.
Lake Tahoe region: Snowshoe trails, lessons, rentals, guided trips and moonlight snowshoe tours are available at several Tahoe area resorts, including Northstar-at-Tahoe Resort, (530) 562-3270, http://www.northstarattahoe.com/info/ski/crosscountry.asp; Kirkwood Mountain Resort, (209) 258-7248, http://www.kirkwood.com/pages/x-countrycenter/overview.asp; and Squaw Valley USA, (530) 583-6985, http://www.squaw.com/squaw-valley-usa-tubbs-present-guided-full-moon-snowshoe-tours.
Sequoia and Kings Canyon: Snowshoe walks are usually offered on Saturdays and holidays at Wuksachi Lodge and Grant Grove. (559) 565-4307, http://www.nps.gov/seki/planyourvisit/skiing.htm.