This southwestern mountain town is ideal for multi-sport adventurers who want to have access to activities on land and in the water. The Animas River snakes right through Durango and is famous for providing some of the best kayaking and rafting in the state. Head just uphill, and you can be surrounded by the soaring peaks of the Rockies, hiking in out-of-this-world alpine terrain, while the lowlands offer outstanding mountain biking on over 1,000 miles of trails in the Durango area alone. One of the must-dos, no matter when you’re here, is to hop aboard the historic Durango & Silverton Narrow Gauge Railroad, a narrow gauge steam train built specifically built to handle the narrow mountain routes, chugging along at 18 miles per hour as it climbs the steep and magnificent mountain passes between Durango and Silverton. Much of its downtown area is a designated National Historic District and offers a number of interesting places to visit, like the San Juan County Historical Society, housed in the old county jail, as well as the Mayflower Gold Mill National Historic Site and the Old Hundred Gold Mine.
Precambrian metamorphic rock formed the core of the North American continent during the Precambrian eon 4.5–1 billion years ago. During the Paleozoic era, western North America was submerged beneath a shallow sea, with a seabed composed of limestone and dolomite deposits many kilometers thick.[54] Pikes Peak granite formed during the late Precambrian eon, continuing well into the Paleozoic era, when mass quantities of molten rock flowed, amalgamated, and formed the continents about 1 billion–300 million years ago. Concurrently, in the period from 500–300 million years ago, the region began to sink while lime and mud sediments were deposited in the vacated space. Eroded granite produced sand particles that formed strata—layers of sediment—in the sinking basin.[55]
Although Aspen is best known as a winter sports destination, this lovely little town in the heart of the White River National Forest is a brilliant year-round destination for active adventurers, festival lovers and arts aficionados. Besides downhill skiing, you can try cross-country skiing, snowshoeing, snowmobiling, ice skating and dog sledding, before rounding off your day with Après-Ski cocktails, local craft beers or a delicious meal.

Take in the beautiful scenery of Colorado's Front Range, the gateway to Rocky Mountain National Park, as you zip through the trees! Just a 30-minute drive from downtown Denver lie three of Colorado’s longest zipline tracks. 6-line Zipline: Enjoy 4 hours of fresh air, scenic views and thrills on the 6-line zipline in the Rocky Mountains. Ride on six lines that range from 850 feet (259 m) to 1,900 feet (579 m). Soar through the treetops and experience three of Colorado’s longest ziplines! There is a 10-minute uphill hike between the first and second zipline and minimal walking between the others; above-average physical condition is recommended.
Though the Airbnb cabin can accommodate up to 6 people, you can rent it just for the two of you. This vacation rental is located within walking distance to the historic town of Cripple Creek, Colorado. Surrounded by pine and aspen trees, this cabin makes a perfect option for couples who want a romantic getaway. The atmosphere is quiet and peaceful, allowing you to spend quality time together. There is a quite large kitchen for you and partner to prepare romantic dinners. At night, look up to the sky to see the beautiful starry night while holding each other’s hands!
Breckenridge is one of the top names in Colorado getaways, but you have to see the quaint downtown surrounded by towering peaks to truly understand what makes this destination so great. Known for its premiere skiing and beautiful hiking—picture rocky trails and alpine lakes—it’s a Colorado weekend getaway that makes you want to get outside and explore. For those who are interested in cozying up while on vacation, a spa package or winery visit could do the trick.
In the shadow of Great Sand Dunes National Park and Pre­serve, the quirky town of Hooper sits atop a natural artesian hot spring, with water flowing year-round into the family-friendly Sand Dunes Pool. On the same property, The Greenhouse is an all-indoor, all-adult oasis with three small soaking tubs and a 10-by-75-foot zero-entry pool. The Greenhouse also has a 10-person sauna, indoor gardens and an onsite bar to help you stay even toastier. 

Observing wildlife is one of the most popular activities in the Rockies. A drive through the park at dusk during the summer is sure to guarantee viewing of herds of elk and mule deer. And throughout the rest of the year, moose, bighorn sheep, black bears, coyotes, cougars, eagles, hawks and scores of smaller animals like pikas and marmots delight wildlife-watchers of all ages.
Brian and I descended back to ~7,000 feet for dinner in a small-town Indian restaurant in Nederland, Colorado, west of Boulder. By then, both our heads ached like a bad hangover, and my lungs literally burned when I tried to inhale anything but shallow breaths. Add generalized joint pain, and I had a full-blown case of altitude sickness. Given that I am a noted hypochondriac, I expected the worst.
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