Even on a tight schedule, Divoká Šárka earns the hours.
Allow Half day.
Locals' green escape inside the city limits — dramatic little crags, a natural-feeling valley walk and a summer outdoor pool, reachable by tram. The catch: it's well off the tourist map (which is the point), facilities are basic and seasonal, and it's 'nice city nature' rather than a wow destination. A fine half-day for residents-style downtime, skippable on a short trip.