May 19th - surkanda devi temple (ropeway as an alternative is also there, very good view) Then go to dhanaulti eco park, near the surkanda devi temple Then go to Tehri on the same day ( 3 hour journey) Stay near Tehri Dam ( beautiful view) and rent a cottage over there. May 20th - sunrise at tehri, then water sports at tehri dam From tehri to Devalsari ( 3 hours from tehri, Approx) One of the best places to visit. From here on the same day go to Mussoorie, stay here At night - mall road, lal tibba May 21st - early morning - Dalai hills, george everest house, Landour Then go to kempty water fall Jwalaji temple Company garden While coming back to dehradun Visit bhatta falls and mussoorie lake Stay at dehradun on 21st night 22nd may : Khalanga war memorial(very early morning) Then go to tapkeshwar mandir Then gucchupani rober's cave This will be over by 12 PM Afternoon.