Run by a friendly family that offers good ecotours in English and delicious Rukai dishes, this is the default accommodation in Maolin. Camping is permitted on the grass bluff (per person NT$300; BYO gear), while the two stone cabins offer some modern comfort. Rates, if you book directly with them, include breakfast and a night tour of the valley.
To get to the guesthouse head up County Rd 132 until you see the signs for Maolin Valley (茂林谷; Màolíngǔ, also Maolin Gorge). Turn right down a side road and cross the bridge. When the road ends at a fork, head left and up about 1km. The first building you see is the guesthouse.