Where's your 'happy place' in London?

[Walnutwhipaddict]

Hey everyone,

So I'm new to London and have a few hours to kill. Just on Oxford street (so hot!!!) and looking for somewhere relaxing (and a bit cooler) where I can chill for a bit.

I would love to go somewhere like the National Gallery, but apparently it's closing at 6 :(

Any suggestions on a nice little place (niche, unusual, off the beaten track, all suggestions welcome!) in central London that I could chill in for a bit please?

Thanks!

Ahh, too late for you now, but for anyone else: St James Park. My absolute favourite place in the world.

I could sit there all day.