In the hot weather you can cool down by the Diana Memorial Fountain or swim at the lido which is open for public swimming from June to September. The lido also hosts the famous Christmas day race. 

Speakers corner, at the top of the park near Marble Arch tube, allows any member of the public to speak publically as long as they don't use obscene language. This is a great place to go on a Sunday morning when it is busiest. 

The Meadow Wildlife is a managed wildlife area covering 4 hectares and is home to many wild flowers, buterflies and insects. 

The park is open from 5am until midnight all year round.