27 places

Afternoon Tea Animal Enclosure Animal Park Aquarium Art Gallery Art Studio Art Workshop Attractions Boat Trip Botanic Garden Bridge Castle Entertainment Events Farm Fountain Garden Gardens Hill Historic Castle Historic House Historic House Gardens Historic Ship Ice Cream Shop Immersive Art Immersive Experience Indoor Theme Park Landmark Library Market Museum Museum Ship Nature Nature Events Nature Park Nature Reserve Nature Trail Outdoor Adventure Palace Park Park Gardens Planetarium Playground Railway Restaurant Riverside Seaside Seaside Attractions Shop Theatre Theme Park Town Transport Venue Viewpoint Views Walks Wildlife Trail Woodland Zoo

Roof garden - a few options available
Free / cheapOutdoor
St James' Park
Outdoor
Hyde Park Diana Memorial Fountain for splashing about
Free / cheapOutdoor
The Chimney Lift at Battersea Power Station
Outdoor
Hampstead Heath
Free / cheapOutdoor
Dulwich Park
Free / cheapOutdoor
Cable Car
Outdoor
Crystal Palace Park
Free / cheapOutdoor
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Richmond Park - see the deer
Free / cheapOutdoor
Morden Hall Park
Free / cheapOutdoor
Beckenham Place Park
Free / cheapOutdoor
Carshalton
Free / cheapOutdoor
Beddington Park
Free / cheapOutdoor
Danson Park
Free / cheapOutdoor
Chessington World of Adventures
ExpensiveOutdoor
Lullingstone Country Park
Free / cheapOutdoor
Thorpe Park
ExpensiveOutdoor
Gatton Park
Free / cheapOutdoor
Box Hill
Free / cheapOutdoor
Emmetts Garden
ModerateOutdoor
Knole deer park
Free / cheapOutdoor
Legoland Windsor
ExpensiveOutdoor
Shorne Woods Country Park
Free / cheapOutdoor
Trosley Country Park
Free / cheapOutdoor
Tilgate Park
Free / cheapOutdoor
High Rocks
ModerateOutdoor
Mote Park
Free / cheapOutdoor