ZSL London Zoo houses over 700 species — highlights include the Gorilla Kingdom, Tiger Territory, and walk-through Butterfly Paradise. Tickets start around £32 adults / £22 children (3–15); under-3s free. Book online at least a week ahead during school holidays to save 10–15%. Allow 4–6 hours; pack lunch as the on-site café is pricey.

Address: Outer Circle, Regent’s Park, London NW1 4RY

Google Maps: Click here for directions

Cost: Paid $$$