Hama-rikyu Gardens is a former shogunal garden on the edge of Tokyo Bay, where tidal ponds, black pines, and clipped lawns sit under a skyline of glass towers. The contrast is the point: old Edo landscaping pressed right up against modern Tokyo.
The teahouse on the pond is the classic stop, with matcha and sweets served on a small island reached by wooden bridges. It pairs naturally with Tsukiji Outer Market or a Ginza walk, especially when you want a calmer hour between busier sights.