Ynys Moelfre

Ynys Moelfre (Moelfre Island) is a small island off the coast of Anglesey, Wales. At low tide it has a maximum length of 261 metres and a maximum width of 121 metres with a maximum area of 6.6 acres (27,000 m2). The nearest settlement to the island is the village of Moelfre and the two are separated by a shallow channel called Y Swnt (The Strait or The Sound) which is never more than 194 metres wide and can at low tide only be waist deep all the way across. Due to its proximity to the mainland there are grasses found on the island and a few wild flowers. Species of birds that can be found on the island include gulls, terns, gannets, fulmars, and Great/Arctic skuas. Porpoises are occasionally seen also. There are however no man made structures.

The island is found at 53°21′29.3″N 4°13′39.2″W and is referred to by some locals as Rat Island.


Islands of Anglesey
  • Church Island
  • East Mouse
  • Holy Island
  • Middle Mouse
  • North Stack
  • Puffin Island
  • Salt Island
  • The Skerries
  • South Stack
  • West Mouse
  • Ynys Benlas
  • Ynys Castell
  • Ynys Dulas
  • Ynys Feurig
  • Ynys Gaint
  • Ynys Gored Goch
  • Ynys Llanddwyn
  • Ynys Moelfre