Spend a whole day exploring one of America's most scenic national parks. Stop by Denver's Winter Park Ski Resort, Grand Lake, Estes Park, and the university town of Boulder along the way.

This 225-mile (362 km) tour features the best of Colorado. Wind your way through the tunnels of Clear Creek Canyon, into the Arapaho National Forest, and over Berthoud Pass at 11,314 feet above sea level. From there, descend into Winter Park and beautiful Grand Lake, the world's highest yacht basin. A lunch stop allows you to relax and enjoy the phenomenal scenery.

After lunch, take an awe-inspiring drive into Rocky Mountain National Park along Trail Ridge Road, the highest continuous automobile route in the US. At the 12,183-foot summit you can gaze across the tops of many mountains, including massive Long's Peak. The return trip down the mountain goes through the village of Estes Park, by rugged North St. Vrain Canyon, and into Boulder—home of the University of Colorado.

As the sun sets, sit back and relax during the last leg of your drive into Denver. Now you can tell everyone that you crossed the Continental Divide not once, but twice.

Soar along an incredible 1,900-foot (580-m) zipline and capture a bird's-eye view of the Rocky Mountain's towering trees and lush mountainsides. Led by certified and charismatic guides, strap in and prepare for an unforgettable time zooming along Colorado's highest and fastest ziplines.

Just 30 minutes outside of Denver is an area with gigantic pine, fir, and spruce trees—the perfect environment for an expansive zipline course. Strap into your safety harness as your knowledgeable instructor briefs you on zipline safety and operations. Guides join you on each platform of the course, systematically checking the equipment's safety and giving you fascinating facts about the region's unique geology and wildlife.

Break the speed limit without getting fined as you soar down Colorado's fastest line, reaching up to 60 miles per hour (96.5 kph) at 250 feet (76 m) above the ground; that's close to 9,000 feet (2,750 m) in elevation. You also experience the state's longest zipline, an incredible 1,900 feet of rope.

Before returning to Denver, enjoy some refreshing drinks and snacks with the picturesque Rocky Mountains as your backdrop.

Ride the Georgetown Loop railroad and travel over Squaw Pass. Your trip includes a visit to historic Echo Lodge, and a delightful lunch with memorable mountain scenery.

This tour departs Denver and heads to the foothills—driving along Squaw Pass, you see beautiful flora and fauna. Stop at the historic Echo Lodge, known for its spectacular views, and enjoy a cup coffee. While at Echo Lake enjoy a delicious lunch combined with stunning mountain scenery.

After lunch, head to Georgetown Loop Railroad Station and board this narrow gauge train for a trip down and back up a beautiful mountain canyon. Ride along as you reach 9,000 feet (2750 m) above sea level. Be sure to bring your camera and snap a few photos as this train route provides spectacular views.

Following your train adventure, drive to a historic mining town—Georgetown. See the beautiful Victorian homes and longstanding shops. Then sit back and relax on your gorgeous drive through the Rocky Mountains as you had back to Denver.