Sunbury Lock Ait

Sunbury Lock Ait is a river island in Surrey that sits between Walton-on-Thames and Sunbury-on-Thames along the Thames, characterized by dense woodland, ferns, and thick vegetation. The island contains boating facilities, a yacht club, and a private boat repair yard where vessels are maintained by hand.

The island was acquired by the City of London Corporation in the early 1800s to build a lock system, completed in 1815, which transformed navigation along this reach. This infrastructure project remains central to how the river functions in this location.

The island serves as a hub for recreational boating, with sailing clubs and water sports enthusiasts making regular use of its facilities. This connection to Thames navigation reflects the long-standing tradition of leisure activities that have defined this stretch of the river.

Access to the island is via a footbridge connecting to the Thames Path towpath on the south bank or along the lock gate walkways. The best time to visit is during calm weather when pathways are dry and foot traffic is manageable.

A working boat repair yard on the island employs craftspeople who maintain vessels using traditional techniques passed down over many decades. Few visitors realize this hands-on maritime work still takes place here, connecting the island to centuries of Thames watercraft traditions.

GPS coordinates: 51.40361,-0.40972

Latest update: December 21, 2025 16:05