Caernarfon Bay Special Area of Conservation is a protected marine and coastal environment noted for its rich biodiversity and vital habitats supporting numerous marine species. It offers unique opportunities for coastal wildlife observation and marine ecology appreciation.
Caernarfon Bay Special Area of Conservation (SAC) is located along the northwest coast of Wales, encompassing marine waters, estuaries, and coastal zones adjacent to the town of Caernarfon and the Isle of Anglesey. The area covers a range of vital habitats including sandbanks, subtidal mudflats, and extensive seaweed communities, which provide essential breeding and feeding grounds for a variety of marine life. The bay supports populations of protected species such as grey seals, bottlenose dolphins, and several types of seabirds including Arctic tern and the Sandwich tern. The coastal waters are also important for migratory fish species and diverse benthic communities. This SAC plays an important role in maintaining the ecological integrity of the Menai Strait and adjacent marine environments. It is part of a network of protected marine areas around the UK and Europe aimed at conserving marine biodiversity under the EU Habitats Directive. Visitors to the area can explore scenic coastal paths offering views of sandy beaches and cliffs, enjoy birdwatching, and participate in marine wildlife watching tours. Nearby historical landmarks such as Caernarfon Castle provide cultural interest, enhancing the visitor appeal. The conservation designation helps balance sustainable recreation with sensitive ecosystem protection, making Caernarfon Bay SAC a significant site for both natural heritage and outdoor enthusiasts.
Dolphin and grey seal sightings along the coastal waters
Extensive sandbank and subtidal mud habitats supporting diverse marine life
Scenic coastal walking routes connecting to Caernarfon and Anglesey
Proximity to historic Caernarfon Castle and cultural landmarks
These underwater sandbanks provide crucial habitats for many marine species and serve as feeding grounds for fish and birds.
Several coastal areas within the SAC serve as resting and breeding grounds for grey seals, visible from shore or boat tours.
The region supports extensive seaweed habitats, particularly kelp forests that offer food and shelter to many marine organisms.