Ready to step up your big-air game but not to accept the looming consequences of landing on your head? Work on your aerial awareness (and your cojones) at Progresh before taking new tricks out into the real world. The indoor ski, snowboard, BMX and skateboarding facility opened in Thornton in 2013, offering a full schedule of classes, camps, private lessons and drop-in sessions, as well as field-trip-friendly group activities and corporate team-building sessions. But the facility's main attraction is an indoor airbag that was made specifically for action-sports training — and soft landings. Progresh also features trampolines, skate ramps and a digital editing room for dialing in those mid-air selfies.