© Wynand van Poortvliet


On this website the Marine Conservation Society uses water quality monitoring data provided by the following environment agencies, local authorities and Governments;

*Contains Environment Agency information © Environment Agency and database right.
*Contains Natural Resources Wales information © Natural Resources Wales and database right.

Actions you can take

Did you know?…

MCS is a leading partner and volunteer trainer in the largest experimental marine citizen science project ever undertaken in the UK: Capturing our Coast

Over 1,000 marine wildlife sightings were reported to MCS last year

5.4 million people spend time by, on or in the sea every year

Stop the plastic tide

Support our appeal to turn the tide on plastics.

Find out more