Grass Eyot is an island in the River Thames in England above Maidenhead Bridge on the reach above Bray Lock, near Maidenhead, Berkshire. [1]
Out of accordance with its name, the island is tree-covered and there is a very small island between it and Bridge Eyot just downstream.
51°31′44″N0°42′02″W / 51.5290°N 0.7005°W