You will need a car and a fairly good map to get close to Sully Island. Allow a half day for this adventure, and perhaps the other half in St Fagans.

Check low tide, at Barry, for the day you are planning to travel, and aim to get here about 1 hour before low tide. You can have a snack or meal in the Pub which overlooks the Island. If you find yourself wandering through a caravan park, you are going the right way! 

This island is linked to the caravan park by a treacherous causeway. MANY people have died at this spot, and even strong swimmers have been swept off their feet, and drowned. Only at extreme low tide, is it safe to cross to the Island. Then the rocks will be rough, slippery from seaweed, but perfectly walkable, but go carefully so as not to twist your ankle. As soon as the tide starts to come in (it goes down 30-40 feet each day) you must get back to the mainland, or spend the next 12 hours on the Island, with no food, water, or shelter. Around 1200 years ago, the Vikings were raiding all of the coastline of England, Wales, Scotland and Ireland. The hill at the end of the island is reputed to have been a Viking look out fort. The visible ribs of a ship are, sadly not those of a Viking ship, but a Victorian wreck. Please DO NOT TOUCH the vessel, or it will not be there for your grandchildren to see. The was/is reputed to be a tunnel under the sea from the far side of the island which emerges near the Captain's Wife public house on the mainland to facilitate the smuggling reputed to occur in this area through the 17th and 18th centuries.