About 2km from town, Grojogan Sewu, a 100m-high waterfall, is a favourite playground for monkeys (as is the parking area). It is reached by a long flight of steps down a hillside, but you probably won’t want to have a dip in the chilly, and filthy, swimming pool. From the bottom of the waterfall a trail leads to a good track to Candi Sukuh, a 2½-hour walk away. Some Solo guides offer treks.
This path is steep in parts but is also negotiable by motorbike. Ojek hang out at the beginning of the trail on weekends.
