Algae and sandstone, Cultra
Introduction
The photograph on this page of Algae and sandstone, Cultra by Albert Bridge as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk

Image: © Albert Bridge Taken: 2 May 2013
A green algae, growing on another example of this sandstone Image, below the seawall on the Holywood side of the yacht club. For something similar see Image