Detailed Itinerary (12 Days) – ThinAirExpedition Standard Day 1: Dehradun → Sankri (1,920m) Drive through Mussoorie & Govind National Park Overnight in guesthouse Day 2: Sankri → Taluka → Osla (2,500m) Jeep ride to Taluka, trek to Osla village Camp near the river Day 3: Osla → Ruinsara Tal (3,500m) Beautiful trail along Tons River Camp beside Ruinsara Lake Day 4:... https://www.thinairexpedition.com/black-peak-expedition/