Punakha - Gasa - Laya Trek 12 days 8 days trekking Trekking: Punakha - Gasa - Laya . Bears in Gasa Gasa Hotsprings - Tsachhu . Gasa Trekking Mo Chhu Valley Mules in Gasa Gasa Dzong Damji_Village near Gasa Archery in Gasa .