See the giant sequoias of Sequoia and Kings Canyon National Parks (otherwise known as “SEKI”) cloaked in winter white while walking atop the snow-on snowshoes. Through March, the Giant Forest and Lodgepole areas offer ranger-led snowshoe walks during most weekends, snow permitting. The snowshoe rental and the walk are free. Reservations are required: Call (559) 565-4436.