The old totems of Welsh island

No much times ago the "Welsh Island, Welsh" was so renomate vacation land. Recently I know that in this island the most attractive tourist thing, the two rock obelisks of the sea, disappeared... cataclysm of the region? I don't know... No one can say me why... I have one old photo about my last journey in it with the obelisks of Welsh island. Old remembering... One of the 8 wonder of sl disappeared, why? Everyone know about it, but I wanted fixed my moment when I discovered that news, like was this present time... unforgettable... I hope to undestand why.