Yōsui-en, Japanese strolling garden in Wakayama, Japan.

Yōsui-en is a strolling garden laid out around a seawater-fed pond in Wakayama. A stone-edged path leads to a single-arched stone bridge with stepped sides, and a rounded peninsula of dry grass bordered by fitted stones meets the water. A light-walled building with a dark tiled roof stands behind pruned pines, and a stone marker engraved 養翠園 rises beside a gravel path toward a dark wooden gate.

The garden was commissioned in 1818 by Harutomi Tokugawa, the tenth ruler of Kishu Domain, and took eight years to complete. This creation period fell during an era when large-scale garden projects represented displays of wealth and authority.

The garden displays traditional Japanese design with a teahouse that hosted formal gatherings and ceremonies. Visitors can see how such spaces served as centers for cultural practices and social occasions.

The garden is open daily with extended hours during summer months compared to other seasons. Visitors should wear comfortable walking shoes as there are many paths to explore throughout the grounds.

The central pond is fed with seawater from Oura Bay and harbors local aquatic animals such as eels and gobies. This feature creates an unusual connection between the garden design and the nearby coastal environment.