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Coast and sea

From former kelp forests to chalk reefs and swathes of shingle, Sussex is home to rare and extraordinary marine environments and wildlife, all of which face huge pressures.

© Paul Parsons
© Nikki Oliver
© Paul Parsons
© Sam Roberts
© Claire Andrews
Wild Coast Sussex Elm Grove Primary Miles Davies 13© Miles Davies

What makes our coast special

Many marine habitats

The Sussex coastline is around 140 miles long, stretching from Chichester Harbour in the west to Camber Sands in the east, and facing out into the English Channel.

The marine environment is hugely varied across Sussex, meaning we have a great diversity of coastal and underwater habitats and associated sea life. 

Challenges for marine nature

Pressures on our coast and sea

The English Channel is one of the busiest waterways in the world, bringing an abundance of pressures on our marine environment. The marine environment is under threat from pollution, overfishing, direct damage, habitat loss, and of course the impacts of climate change. 

Space for nature is not often prioritised, and we no longer truly understand what our environment should naturally look like – the phenomenon known as ‘shifting baselines’. In a busy and changing world, we need our marine environment to be a healthy, functioning ecosystem that is resilient to the pressures and changes around it. 

Worthing Jewel Anemone Paul Parsons 2024 1© Paul Parsons
Short-snouted Seahorse Short-snouted Seahorse © Paul Naylor

Hope for recovery

Marine Protected Areas

Marine Protected Areas (MPAs) are designated parts of the sea where human activities such as fishing are restricted to safeguard habitats, species and ecosystems. They are not simply no-go zones – MPAs are actively managed to allow sustainable use of the sea alongside nature recovery.

Off the Sussex coast, the sea is heavily used by shipping, industry and recreational users, making protection all the more important. MPAs are a practical, proven tool to help our seas recover.

Join the Sussex Wildlife Trust community

Become a member today to protect nature for tomorrow

As a member, you get access to free guided nature walks, magazines about local wildlife, discounts on courses and events, and a guide to our reserves.

Not quite ready to join but want to help?

Donate to help create a wilder future for nature in Sussex

Choose to give money to a specific cause, or to our work to manage local reserves, defend nature, and create wonderfully wild spaces on land and beneath the waves.