If your priority is a calm and less crowded trip, Tirthan Valley is a better choice than Kasol; Kasol is more lively and touristy, while Tirthan is quiet, surrounded by nature, and perfect for a peaceful getaway. In Tirthan, you’ll find good homestays and riverside cottages, and things to do include visiting the Great Himalayan National Park, short hikes, village walks, and relaxing by the river; overall it’s ideal if you want to disconnect and enjoy nature without crowd