Every weekend, affordable, interactive and fun-based learning experiences appeal to all interests in the winter wonderland of Yosemite National Park. Guided naturalist hikes on snowshoes, a winter ecology program at the cozy Ostrander Hut, assisting rangers with a snow survey, two winter photography courses, and a series of moonlight snowshoe programs are just a sampling of the wide range of affordable learning adventures offered by the acclaimed non-profit organization, Yosemite Association (YA) at the start of 2009. https://www.nps.gov/yose/learn/news/yaoa08.htm