Hallsmead Ait is an island in the River Thames in Berkshire, England.[1] [2] It is on the reach above Shiplake Lock near Lower Shiplake.[3]
The island is large and triangular shaped, forming a pair with The Lynch, a similar shaped island. It is uninhabited and covered with a wide variety of trees. Although it is positioned towards the Oxfordshire bank of the river, it is actually in Berkshire.[4]
Berry Brook starts close to the Redgrave-Pinsent Rowing Lake to the southwest, running northeast through the Thames floodplain, before joining the river at Hallsmead Ait.