Bermondsey Spa Gardens

You'll find yourself in a genuinely quiet corner of SE1 when you wander through the gates of Bermondsey Spa Gardens. The park harks back to the 18th century when this area was actually known for its mineral springs—there's proper history baked into the place. These days it's the sort of spot where Bermondsey locals actually hang out rather than tourists, with tree-lined paths, benches that actually face something worth looking at, and enough greenery to make you forget you're still in London. It's small enough to feel intimate but spacious enough that you won't feel like you're sitting on top of strangers.