Cramond Island is one of several islands that lie in the Firth of Forth in eastern Scotland, near Edinburgh. Situated approximately one mile (1.6 km) out at sea, Cramond is a tidal island which is only connected to the mainland at low tide.
There is a paved path, exposed at low water, which allows easy access. This causeway runs at the foot of a row of concrete pylons on one side of the causeway, which were constructed as a submarine defence boom during the Second World War and are one of the most striking sights in the area.
At high tide the path is covered by several feet of seawater which cuts the island off from the mainland. It is safe to walk along the raised causeway to the island at low tide, but only if visitors ensure that they leave sufficient time to return to the mainland before the water rises.