Bumthang is located to the east of Gangtey, and is generally the furthest you get along the road in Bhutan before turning back or flying to Paro (although you can continue to Tashigang and Mongor and finish in Assam in India). There are four valleys which make up the Bumthang district: Choekhor, Tang, Ura and Chhume and you can easily spend three or four days here exploring them all. Bumthang is considered to be the most spiritual of Bhutanese towns, which a plethora of small temples and monasteries. There are countless options for trekking, either on short day-hikes or longer overnight treks such as the Bumthang Cultural Trek. There are four exceptional temples to see: Jambay Lhakhang, Kurjey Lhakhang, Kurjey Drupchuu, Tamshing Lhakang and Kenchosum Lhakhang, and these can be seen on the five-temple walk. If you like get into the great outdoors, then the Bushman Trail is really rewarding, as too the Shugdrak Hike and a visit to the Haa Valley is superb. Bumthang has a number of festivals occurring throughout the year, so this can potentially be incorporated into a tour of Bhutan.