Skiing Jackson's upper mountain—home to its famous steeps and stashes—has always required descending all 4,139 vertical feet to the village tram dock. Now the new Marmot lift, which starts one-third of the way up, allows skiers quick laps on Casper Bowl, a series of 40-degree open shots and powder pillows that generally ski best in January. Of course, less lift time means less rest, which is why we recommend you treat yourself to a night at the fashionably green Hotel Terra (doubles from $319; hotelterrajacksonhole.com). Refuel with the fiery yellow beef curry at Teton Thai. Smart Idea: Enroll your kids in the TGR Fall Line Camp, where pro freeskiers like Dash Long teach groms how to install a helmet cam and go big. (December 29-31; $645, including lift tickets and lunch).