Sick of your favourite holiday spots being overrun by tourists? Tired of finding a hidden gem, only to watch it blow up on social media? Then book your trip to the mystical Hy-Brasil.

Shrouded in the myths of Irish folklore, this elusive island supposedly appears out of the mist off Ireland’s west coast once every seven years. Even then, a mysterious fog keeps anyone from actually stepping foot on its shores.

Still, the legends are compelling enough that cartographers kept Hy-Brasil on their maps from the 14th to 19th centuries, positioning it in the Atlantic just close enough to tease the adventurous with its hidden allure. It's so exclusive, not even the locals can visit. Get ready for the trip of a lifetime—just don't forget to pack your fog light!