What's Up? Walk Take a half-mile walk with Ranger Roland to learn about the night sky, planets, and stars, under our favorite star- the sun! The walk will be held sun or no sun.   All programs are free of charge. All programs meet at the Mobius Arch Trailhead Parking lot, unless stated otherwise. Programs are outside and subject to cancellation without warning. Children must be accompanied by an adult on all programs. Wear sturdy walking shoes and dress for changing weather. Bring water and snacks.