Adblocker detetcted! It seems you are using an adblocker. Ads can be annoying, but small sites like this could not exist without some revenue from advertising. Your adblocker is also blocking the text content of this page and causing images to appear in black and white. To view this page correctly, please turn off your adblocker.
This is a stinging species, and can grow up to a foot in diameter. It's easily identified by its brown Y-shaped markings. The image shows the top side, and inset is the underside.
Found at : Llanfairfechan beach, north Wales