It is one of Europe's "best wildlife secrets" and home to unique and unusual species.
Tags: environment conservation birds bees nature reptiles animals wildlife wildlife-conservation snakes bats amphibians puffins seals dolphins spiders rspb wolves natural-resources-wales cardiff maesteg swansea st-fagans cardigan ospreys merthyr-tydfil aberystwyth slugs menai-bridge skewen bala new-quay aberdyfi snails caerphilly guillemots razorbills snowdon toads
Experts say the animals become agitated and go into the water, which could lead to them not returning.
Tags: wildlife drones seals swansea-university
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