In 1373 Edward III granted a charter to Bristol, which made it a county of its own separate from Somerset or Gloucestershire. Denny Island is referred to in the charter as Dunye. This may mean that the name meant “island shaped like a hill” in Old English.Denny Island has an area of 0.24 hectares and is covered in scrub vegetation. It becomes much larger at low tide, due to the Bristol Channel having the second highest tidal range in the world. Strong tidal currents and the danger of quicksand on a rising tide make the island almost impossible to land on. Therefore it is extremely unlikely that I will ever set foot on it.
The island provides a roost for seabirds. Small colonies of cormorants and great black backed gulls and a few pairs of rock pipits nest on the island.
Denny Island from Portishead - a speck on the horizon
Denny Island is on the left hand side of the photo on the horizon