Upon your arrival in Dehradun, check into the Regenta LP Vilas Spa by Royale Palm, a 5-star hotel with excellent facilities and service. Spend the morning exploring the hotel and its amenities, including a luxurious spa and a picturesque pool. For lunch, head to Cafe Coffee Day, a popular cafe chain that serves delicious coffee and light bites. In the afternoon, take a guided tour of the Forest Research Institute, a historic institute that houses a museum and botanical garden. In the evening, head to The Terrace, a rooftop restaurant that offers stunning views of the city and serves delicious Indian and Chinese cuisine.
Start your day with an early breakfast at the hotel and head to Rishikesh, a spiritual town located on the banks of the river Ganges. First, visit the Laxman Jhula, a suspension bridge that offers stunning views of the river and the surrounding hills. Next, visit the Beatles Ashram, where the Beatles famously spent time meditating and composing music. In the afternoon, visit the Triveni Ghat, a holy bathing spot on the river Ganges. In the evening, attend the Ganga Aarti, a spiritual ritual that involves lighting lamps and offering prayers to the river Ganges.
After breakfast at the hotel, check out and head to the Robber's Cave, a natural cave with a stream inside. Spend some time exploring the area and taking a dip in the cool water. Next, head to the Maggi Point, a roadside stall that serves delicious Maggi noodles and tea. Finally, before departing Dehradun, visit the Mindrolling Monastery, a beautiful Buddhist monastery that houses a large prayer hall and stunning murals.
If you're interested in adventure sports, you can visit Rishikesh Adventure Sports and indulge in activities like rafting, bungee jumping, and camping. Another great side trip from Dehradun is a visit to the Tiger Reserve in Kotdwar, which is about 112 km from Dehradun. You can also consider taking a day trip to Mussoorie Lake, a serene lake located about 33 km from Dehradun.