Become a member

Protecting our ocean for generations to come

Join us today and become a crucial part of our mission to protect and sustain marine wildlife and habitats in the UK and UK Overseas Territories. Your membership means we can continue to work towards greater goals and improve our ocean's health for the next generation.

This is a secure system, your data will never be used in ways that you haven’t explicitly opted in to.

Not ready to become a member? Donate a single amount instead

95% of our supporters would recommend, or have recommended, Marine Conservation Society membership to a friend

Thinking of gifting a membership to your loved ones?

Remember to input the recipient's email and physical addresses to make sure they receive all the brilliant membership updates and benefits directly

Limited time offer, buy a gift membership and receive a £30 voucher to spend in our shop. Simply order a gift membership and we'll send the voucher code to you, the purchaser.

Offer runs from Monday 30th June to Monday 14th July 2025, whilst voucher stocks last. Available on gift memberships only. See terms and conditions for full details.

Benefits of becoming a member

A Marine Conservation Society membership allows you to:

Support vital marine conservation projects
Protect local marine diversity
Stay informed of updates and initiatives

Want a sneak peek of our members magazine for free?

See what makes Your Ocean a must read for ocean lovers.

Every new member can also choose to receive a physical or digital welcome pack. This includes our ‘living without single-use plastic’ guide, Seashore safari booklet and reusable tote bag to help take everyday actions for our ocean.

Need any help?

If you need any assistance please don't hesitate to get in touch with the Membership Team via membership@mcsuk.org or you can call 01989 566017 and select the membership option.

Welcome pack including member guides, resources and tote bag, laid on the sand

Credit: Natasha Ewins

Our members help make ocean restoration happen

Membership success stories

We work tirelessly to protect our ocean for the future and your membership contribution helps determine the scale and scope of our efforts. With your continuous support, we can continue to fund vital marine conservation projects which will preserve the health of our oceans for generations to come.

Restoring Seagrass

By using innovative solutions to safeguard ocean biodiversity, we've collectively given space for rewilding to take place. We’re working with local communities to protect the seabed. In the south of England, our project has driven a 212% increase in seagrass cover following the installation of protective measures, benefitting wildlife, people, and planet.

Check out our seagrass restoration project

Credit: Laura McConnell

Reintroducing Oysters

We’re reintroducing native oysters to Scottish seas. Oysters play a vital role in supporting ocean recovery, forming reefs which provide habitat for marine life, and filtering up to 200 litres of water per day. With an 85% global decline in oyster numbers, we’re working to reverse this trend through pioneering projects.

Find out about our oyster reintroduction projects

Restoration Forth Oysters - Emmy and Caitlin

Credit: Maverick Photo Agency

Why make monthly contributions?

By supporting our causes month on month, you boost the impact you have as an integral part in bringing about massive change to our ocean. Your continuous support allow us to set our sights on more ambitious goals. By providing us with a reliable source of income, we can fund larger-scaled projects that will make a greater difference to the marine landscape and its inhabitants.

Membership Frequently Asked Questions

We're sorry to see anyone cancel their membership but understand that sometimes, individual circumstances arise. If you’d still like to support the Marine Conservation Society, please contact the membership team to discuss your options. If you still want to cancel, please let us know by phone, email or letter and we advise that you cancel your Direct Debit with your bank.