Mile High Gliding, Boulder

Aspen
Embark on a flight of fantasy as a hot air balloon takes you above the graceful, yet rugged landscape of the Aspen and Snowmass area. With Unicorn Balloon Company, you'll experience limitless panoramas of 14,000 foot peaks as well as intimate views of wildlife in the meadows below. www.unicornballoon.com/Colorado.htm

Boulder
Boulder Mountain Parks and Open Space offers 120 miles of trails to be used by walkers, hikers, bicyclists, horseback riders, dog walkers and other passive recreational uses, such as nature study and photography. www.ci.boulder.co.us/openspace/

Enlist the knowledgeable guides at Boulder Rock Club for a rock climbing lesson on local terrain or in their extensive gym, where you'll find 10,000 square feet of climbing surface, 35-foot lead walls and a 2,000 square-foot bouldering cave. www.boulderrock.com

Head to Eldorado Canyon State Park for the best in rock climbing, hiking, biking and fishing. Since there are over offers over 500 different routes offered, climbers from all over the world come to Eldorado Canyon to enjoy some of the best climbing to be found. parks.state.co.us/eldorado/index.asp

Mile High Gliding offers scenic rides in high performance sailplanes over the city of Boulder and the foothills of the Rockies. You will soar effortlessly and silently, free from engine noise as you have an unobstructed view of the world below. www.milehighgliding.com

Durango
The Durango & Silverton Narrow Gauge Railroad is an authentic turn-of-the-century steam powered, coal-fired scenic railroad through the scenic San Juan Mountains of Southwest Colorado.  Established 1881, it  operates year-round with service to Silverton in May-October and to Cascade Canyon in November-April. www.durangotrain.com

Manitou Springs
At the Cave of the Winds, there's a tour suited for everyone. From a guided walking tour in the cave to a day-long adventurous exploration, wearing a helmet and headlamp - there's bound to be a tour that suits you.  www.caveofthewinds.com