When I lived in London my commute consisted of a cycle ride and a train trip (sometimes I would cycle all the way, but that was well over one hour cycling). And the cycle ride would often lead me through Richmond Park. The park is quite big, at least much bigger than I had expected with about 3 by 3 km long sides. And sometimes the view was just beautiful there, definitely a quiet place in otherwise rather hectic London. The wildlife in the park is also peaceful, the deer grazed next to the road, 5 steps and I would have been able to touch them.