Located directly on the South Bank, SEA LIFE features a walk-through shark tunnel, touch pools, and penguin feeding sessions. Book online — ~£26 adults / £22 children pre-booked vs. significantly more walk-up. Allow 1.5–2.5 hours; toddlers love the shallow touch pools and jellyfish displays. Combine with a stroll along the South Bank riverfront for a full family day without needing the Tube.

Address: County Hall, Westminster Bridge Road, London SE1 7PB

Google Maps: Click here for directions

Cost: Paid $$