Adventure

I want to go on some mini-adventures. I don't think I make enough out of living in this amazing city so, now that the exam stress is over, I want to go and explore it. Of course all explorations need to be free or very cheap, as I'm still poverty stricken, but there must be loads to do that doesn't require money. The first thing I want to do is go and swim at Hampstead Heath ponds. I've never been and I feel this should be rectified. Want to come with me?