Situated in Southern Colorado, the Great Sand Dunes National Park is an impressive sight. Shaped by winds blowing from and against the nearby Sangre de Cristo Mountains, the piles of sand climb to more than 750 feet (230 meters), making them the tallest dunes in North America. Sand-boarding, skiing and sledding on the dunes are the park’s most popular activities, and there are medium-size slopes to slide on located near the main parking area. A longer hike to the north brings thrill seekers to a 300-foot (90 meter) slope that tumbles onto into Medano Creek.
The Golden Triangle Museum District boasts eight of the city’s museums and the Denver Performing Arts Complex can provide ample entertainment. Outdoor activities include biking along the historic Greenway Trail, having fun at one of the several extreme sports parks, playing a round of golf, strolling through lovely parks and gardens, or visiting the Denver Zoo. Things to Do in Denver
Glacial geology in Rocky Mountain National Park can be seen from the mountain peaks to the valley floors. Ice is a powerful sculptor of this natural environment and large masses of moving ice are the most powerful tools. Telltale marks of giant glaciers can be seen all throughout the park. Streams and glaciations during the Quaternary period cut through the older sediment, creating mesa tops and alluvial plains, and revealing the present Rocky Mountains.[61] The glaciation removed as much as 5,000 feet (1,500 m) of sedimentary rocks from earlier inland sea deposits. This erosion exposed the basement rock of the Ancestral Rockies. Evidence of the uplifting and erosion can be found on the way to Rocky Mountain National Park in the hogbacks of the Front Range foothills.[60] Many sedimentary rocks from the Paleozoic and Mesozoic eras exist in the basins surrounding the park.[62]
In the winter, Steamboat Springs is famous for its champagne powder; in the summertime the Yampa River Valley, Steamboat Lake and Zirkel Wilderness Area become a veritable outdoor wonderland with boat rentals, canoeing, kayaking, fishing, SUP, swimming and camping. The Coca Cola Adventure Zone at the base of Steamboat Ski Resort includes ropes course, slingshot bungee jump, climbing wall, mini-bounce, mechanical bull, human gyro and t-shirt spin art. Bring your bikes and wind along the paved four-mile Yampa River Core Trail that follows the Yampa River. Or better yet, grab a tube and cruise down the only free-flowing river in the state, meaning that nowhere along its 261 miles is it obstructed by dams or diversions (a bonus for those float trips). If you want to warm up (really hot), checkout the natural hot mineral springs at Old Town Hot Springs and Strawberry Park Natural Hot Springs. A not-to-be missed event is Steamboat Springs Pro Rodeo where contestants gather once a week to compete. Once upon a time, my daughter won the Ram Scramble and still raves about it. It’s not every day grabbing a ribbon from a sheep’s rear counts as a win!
There’s plenty to do south of Denver on your Colorado vacation. Whether you’re into mountain biking, hiking, history, sight-seeing, or soaking in a hot springs pool, you can find a destination in Southern Colorado (especially near Colorado Springs) that will help you relax, recharge, and reinvigorate. Cañon City and Colorado Springs make the perfect jumping-off points for many of these beautiful, historic western locations. Before or after your rafting trip, try some of these great destinations to enhance your Colorado vacation!
Pagosa Springs is a picturesque, off-the-beaten-path destination surrounded by the San Juan National Forest. It’s an ideal spot for a Colorado weekend trip, with beautiful hiking paths, numerous hot springs, and stunning spots like Chimney Rock National Monument and Treasure Falls. Or going off-roading for another fun way to make the most of this charming town’s personality and views.
Just a few miles from the town of Estes Park, Rocky Mountain National Park is one of the most popular national parks in the United States. The soaring mountain peaks, alpine lakes and meadows, forests, and abundant wildlife showcase nature at its best. The park has more than 100 peaks over 10,000 feet, including Longs Peak, the highest in the park, at 14,259 feet. 
The Experience: Super close to Manitou Springs, you'll find another town called Colorado Springs, which is also in the Pikes Peak region. While you're there, you have to see the park known as the Garden of the Gods. As its title implies, it's pretty otherworldly. With incredible, oddly shaped sandstone rock formations, you'll want to spend all day here. You should also pay a visit to the Royal Gorge Bridge, an insanely high, dramatic bridge between the canyons. Then head to the upscale resort Broadmoor.
Snow-fed rivers tumble over granite boulders in the Rocky Mountains, creating an ideal environment for fly-fishing and whitewater rafting. The state's most famous river -- the Colorado -- flows from headwaters in Rocky Mountain National Park, with alternating stretches of heart-pounding hydraulics and quiet areas where you can wade out and cast your fly. Stay at a Bureau of Land Management campground along the shore, or at private riverside cabins such as those found at Colorado Cabin Adventures 3 miles from Grand Lake. For a more remote experience, stay at Cottonwood Cove, tucked along the banks of the Rio Grande just downstream from the picturesque mining town of Creede.
Above tree line, at approximately 11,000 ft (3,400 m), trees disappear and the vast alpine tundra takes over.[69] Over one third of the park resides above the tree line, an area which limits plant growth due to the cold climate and strong winds. The few plants that can survive under such extreme conditions are mostly perennials. Many alpine plants are dwarfed at high elevations, though their occasional blossoms may be full-sized.[73]
