Mount’s Bay Marine Conservation Zone protects diverse marine habitats and species along the southwestern coast of Cornwall, offering rich opportunities for coastal exploration, wildlife observation, and marine recreation.
Mount’s Bay Marine Conservation Zone (MCZ) covers a significant section of the coastal waters around Mount's Bay, Cornwall, extending from Penzance in the west to Marazion in the east. This zone was designated to protect the area's important marine habitats, including subtidal sand and mixed sediments, rocky reefs, and seagrass beds. These environments support an array of marine species such as crustaceans, fish, seabirds, and marine mammals like seals and dolphins. The bay's geological features include granite outcrops and sandy seabeds, which create a diverse underwater landscape valuable for both ecology and scientific research. Historically, the bay has long supported traditional fishing communities and is rich in maritime heritage. Recreationally, the area attracts kayakers, snorkelers, divers, and anglers who appreciate the clear waters and abundance of wildlife. Notable coastal landmarks near the MCZ include St Michael’s Mount, a tidal island with a historic castle, and the lively seaside town of Penzance. The marine conservation zone ensures protection of biodiversity while promoting sustainable use of the bay's natural resources. Visitors to Mount’s Bay MCZ enjoy access to scenic coastal trails, boat tours, and wildlife watching opportunities, particularly for observing seabird colonies and seasonal marine mammals. The designation supports monitoring efforts to balance human activity with conservation goals, maintaining this unique maritime environment for future generations.
St Michael’s Mount - historic tidal island and castle
Extensive seagrass beds providing essential habitat for marine life
Opportunities to spot visiting and resident marine mammals like seals and dolphins
Clear coastal waters ideal for snorkelling and subtidal reef exploration
A tidal island with a medieval castle accessible on foot at low tide or by boat, offering panoramic views of the bay.
Vital underwater meadows that support nursery habitats for fish and help stabilize the seabed.
Subtidal granite reef habitats rich with marine species including crustaceans, seaweeds, and fish.