Once you in mussoorie and done with the local site seeing then there are plenty of options of excursion around mussoorie.
Lake Mist :- Its about 5 km before Kempty falls on the Mussoorie-Kempty road and is a good picnic spot with accommodation and restaurant facilities, boating is also available.
Mussoorie Lake :- It is a newly developed picnic spot situated on Mussoorie-Dehradun road having a facility of pedaled boats.
Vinog Mountain Quail Sanctuary :- 11 Kms to the south of Library Point lies an old sanctuary established in 1993 and covering an area of 339 hactares.
Dhanaulti :- Dhanaulti is 24 Kms from Mussoorie and in itself a romantic getaway. Situated among the deodar/pine forest it offers a relaxing environment with cool breeze, lovely weather and fabulous view of of snow covered mountains making it an ideal retreat for a relaxed holiday.
Nagtibba :- 34 kms from Mussoorie one reaches is an ideal spot for trekking.
Surkanda Devi :- Situated at an elevation of 3030 mts above sea level near village Kaddukhal the temple of Surkanda Devi is 33 kms from Kaddukhal and one has to trek about 2 kms. The temple of Surkanda Devi is situated on the top of the mountain and is of great religious significance. A fair is held every year on “Ganga Dussehra” during May-June in which thousands of people participate.
Municipal Garden :- A perfect picnic spot the garden with its artificially created lake with paddled boating facility. It is located at a distance of 4 km by rickshaw cycles, pony or by a car and 2 km on foot.
Yamuna Bridge :- About 27 kms from Mussoorie on Chakrata-Barkot road, is an ideal spot for fishing.
Bhatta Fall :- About 7 kms from Mussoorie on Mussoorie-Dehradun road. Access by car or bus upto Balta village from where the fall is 3kms by car or foot. An ideal spot for bathing and picnics.
Jharipani Fall :- About 8.5 kms from Mussoorie on Mussoorie- Jharipani Road. Visitors can go by bus or by car upto 7 kms to Jharipani from where the fall is 1.5 kms, on foot.
Also View Rishikesh , Haridwar , Chopta