Managed by the Wildlife Trust of South and West Wales, it is a wildlife sanctuary, world-renowned for its seabirds — gannets, guillemots, razorbills, fulmars, kittiwakes, Manx shearwaters, chough and the ever-popular puffin.
Atlantic grey seals swim around Skomer Island's waters or languish on the rocks, finding shelter from the raging seas and a haven in which to give birth to their pups.
Skomer Island itself, from spring onwards, is clothed with the most magnificent array of wildflowers. In May, the whole island takes on an indigo colour wash, covered in bluebells.
There are mammals, too, and the Skomer vole is unique to the island, finding a perfect habitat in the bracken.
It is possible to visit Skomer Island from April to the end of September by boat from Martin's Haven on the mainland. There are 87 steep stone steps to climb from the landing point on Skomer and there is no café, so be warned!
Staying on the island is also an option, in basic self-catering accommodation, but spaces are limited so it is vital to book well ahead.
Skomer Island is heaven on earth for birdwatchers and wildlife photographers.