Dominique Ortonward, 11, of Manitou Springs explores an ice cave at The Ice Castles at Silverthorne, Colo. Tuesday, Jan. 3, 2011. The ice formations change from day to day as the sun can melt the ice during the day and more ice is created at night with sprinklers. The exhibit is open 11 a.m. to 9 p.m. Monday to Thursday, 11 a.m. to 10 p.m. Friday and 10 a.m. to 10 p.m. Saturday. Closed Sunday. Admission is $10 for adults and $7.50 for children 2 to 12 and free for children under 3. (The Gazette, Christian Murdock)