Edible sea urchin
This large round urchin is sometimes found in rockpools, recognisable by its pink spiky shell (known as a test).
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Chwilio
Sentinels of the Sea - Marine
WTSWW’s marine monitoring work gathers evidence for critical datasets, used to strengthen the resilience of Wales’ network of protected marine sites and the protection of the marine species found within these sites. Long-term, uninterrupted datasets are particularly important to assess broad population trends, filling knowledge gaps, and informing decisions about use of the marine environment.
Violet sea slug
Despite its dazzling colouration, this fabulous nudibranch can be easily missed, due to its small size!
Great spider crab
Despite its name, the great spider crab is actually smaller than the more common European spider crab.
Long spined sea scorpion
Masters of disguise, this species exhibits one of the best examples of camouflage you will find on the seashore!
Solar powered sea slug
This remarkable creature shows nature’s fantastic complexity!
Sea-holly
The spiky, silvery leaves of Sea-holly give this plants its common name. Look for its beautiful, thistle-like, blue blooms on coastlines and sand dunes in summer.
Sea-buckthorn
Sea-buckthorn is a spiny, thicket-forming shrub of sand dunes. It's native to the east coast of England but considered an invasive species elsewhere. It is most obvious in autumn when it is…
Deborah’s Hole, Pilton, Gower, Swansea
Sea cliff, calcareous grassland, and heath. Status: Part of the South Gower Coast SSSI, which in turn is part of the European Natura 2000 site, the Limestone Sea Cliffs of South West Wales SAC.…
Overton Mere, Overton, Gower, Swansea
Sea cliff, limestone grassland, heath and scrub. Part of the South Gower Coast SSSI, which in turn is part of the European Natura 2000 site, the Limestone Sea Cliffs of South West Wales SAC.
Lesser sea-spurrey
Traditionally a coastal species, Lesser sea-spurrey has spread inland, taking advantage of the winter-salting of our roads. Its pink-and-white flowers bloom in summer.
Common sea-lavender
Common sea-lavender can be found around our coasts on mudflats, creek banks and saltmarshes. Despite its name, its not a lavender at all, so doesn’t smell like one.