The island, Ynys Llanddwyn ... church and well became a place of pilgrimage in the middle ages. The ruins of the convent can still be seen on the island. So if you are celebrating Saint Dwynwen's ...

A convent was established on the island and Ynys Llanddwyn later became popular with pilgrims. Many came to visit St Dwynwen's sacred well, said to foretell if a couple would be happily married.