Coastline
The coastline of the island consists of a combination of long beaches, dunes, red sandstone cliffs, salt water marshes and numerous bays and harbours. The beaches, dunes and sandstone cliffs consist of sedimentary rock and other material with a high iron concentration which oxidizes upon exposure to the air. The geological properties of a white silica sand found at Basin Head are unique in the province; the sand grains cause a scrubbing noise as they rub against each other when walked on. Large dune fields on the north shore can be found on barrier islands at the entrances to various bays and harbours. The magnificent sand dunes at Greenwich are of particular significance. The shifting, parabolic dune system is home to a variety of birds and rare plants and is also a site of significant archeological interest.
Read more about this topic: Geography Of Prince Edward Island