Hollyhock Island

It is located in Berkshire, within the Royal Borough of Windsor and Maidenhead, near the county boundary with Surrey.

[1][2] Before county boundary changes in 1974, the island was part of Buckinghamshire[3] and near the border with Middlesex.

[4] The island is approximately 80 miles (130 km) from the Thames Estuary at the Isle of Grain.

[4] On the island was "The Nest", a house allegedly used by the future king Edward VIII and Wallis Simpson as a romantic getaway.

[7][8][a] Current Ordnance Survey mapping shows no buildings on the island and no connection to the mainland.

Hollyhock Island from upstream (middle distance); Holm Island (background)
Point of Hollyhock Island from downstream (centre right)