Huge park with lakes and rolling hills. When you a...

Huge park with lakes and rolling hills. When you are deep inside this park you can't see the city. Its a place to relax and reconnect with nature. You are also allowed to swim in the lakes, there is a men's pond and a womens pond too. In my opinion, its London's best park, Hampstead (obviously), southend green and Highgate all surround it.