skip to main content

Related links

2014 designation documents

2013 consultation documents (to be updated)

Clyde Sea Sill MPA

Welcome to the Clyde Sea Sill Marine Protected Area  PDF document . This MPA encompasses a persistent thermal front located where the waters of the Irish Sea meet the calmer, less saline waters of the Clyde Sea. The designation also recognises the importance of the area for black guillemots. The boundary of this MPA stretches from the Mull of Kintyre to the Rhins of Galloway and includes the waters around Sanda, Sheep and Glunimore Islands.

Conservation Objectives

The aim is to conserve the protected features of the Clyde Sea Sill MPA. Further information on the conservation objectives is available within the Designation Order.

Protected features

Black guillemot, circalittoral and offshore sand and course sediment communities, fronts and geodiversity feature: Marine Geomorphology of the Scottish Shelf Seabed - sand banks, sand ribbon fields, sand wave fields.

Clyde Sea Sill. Sand Star. copyright SNH

Photo: A sand star on coarse sand. İSNH. For information on reproduction rights contact the Scottish Natural Heritage Image Library on Tel. 01738 458541 or

More Information

For more information about Scotland's MPA network please see our main MPA webpage. If you have any queries relating to this MPA or others in territorial waters (out to 12 nautical miles), please contact Scottish Natural Heritage at