There are numerous trekking opportunities of various durations in the vast 580-sq-km Talassemtane National Park, which begins just outside Chefchaouen. The name means ‘cold spring’ in Berber. Some popular destinations include the small villages of El Kelaâ and Akchour, and God’s Bridge, a natural formation that looks like a stone arch. The duration of these excursions depends on how much you wish to drive versus walk.
Drinking water directly from a tap in Morocco isn't a good idea. However, the Moroccan authorities are concerned about the pollution caused by plastic from bottled water, and many hotels have filtered water for guests which is considered safe to drink.