This trek starts at Paro, following the Pachu (Paro River) upstream literally to its source passing through scattered hamlets and farmland, into a deep and richly forested valley, which further leads to a high alpine pasture land where yak herders graze their animals. Besides, Mt. Jumolhari and its adjoining range have impressed visitors to admit as one of the most beautiful peak. The trek offers a taste of great variety of Bhutanese landscape.