The most popular route from Rishikesh to Mussoorie is via the Dehradun Ring Road and Rajpur Road, which spans about 76 kilometers and takes 2.5 to 3 hours. An alternative scenic route through the Thano Forest offers a quieter drive with lush greenery. Key stops along the way include Dehradun's Rajpur Road, Malsi Deer Park, and Bhatta Falls, making the journey as enjoyable as the destination.