"only true fjord". The cliffs of Ronas Voe are the result of ancient glaciers cutting through a ridge of raised land. The cliffs at the Brough are an example of a roche moutonnée, in which the exposed rock has been sculpted by the passing glacier creating a smooth surface up-ice, and a rough exterior on the rock down-ice. In August 2014 high amounts of rain resulted in a landslide that caused part of the road in Heylor to be temporarily blocked. Beaches There are numerous beaches along the shore of Ronas Voe, including the Lang Ayre, Shetland's longest beach, and the Blade, which during the summer months is a nesting site for Arctic terns. List of beaches Clockwise around the voe: Lang Ayre Slocka The Shun Ayre of Teogs Orr Wick Hollander's Ayre The Blade Sanda Cailla Ships Ayre Sannions Ayre History Battle of Ronas Voe On 14 March 1674 Ronas Voe was the site of the Battle of Ronas Voe, in which the Dutch East India Company ship Wapen van Rotterdam was captured by the English Royal Navy ships HMS Cambridge, HMS Newcastle and HMS Crown. From this event comes one of the earliest descriptions of Ronas Voe by Richard Carter, captain of Crown:"...in my letter to M[aste]r Pepys I have given a account of Cap[tai]n Wetwangs laboring the Dutch East India Shipp w[hi]ch was droue into Ronisvo a very good and sound harbor for 500 Sayle of Shipps of ye N[orth] W[es]t part of Shotland..." The ornithologist's guide to the islands of Orkney and Shetland In 1831, ornithologist Robert Dunn visited Shetland to acquire specimens for his collection, and in 1837 published the notes from his trip "for the purpose of furnishing a guide to those who might be desirous of visiting these islands to collect specimens of Natural History". He spent a considerable portion of his stay living in Assater, exploring Ronas Voe and Ronas Hill multiple times. After a first brief trip across the voe on his first day staying in Assater, he described the return from a second trip out of Ronas Voe: ... when we were about four miles from the mouth of the voe, a strong breeze of wind sprung up from the westward, the sea at the same time rising very rapidly; giving us sufficient warning to exert ourselves, and endeavour to get into a place of security as speedily as possible.