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The creature, possibly a water horse of Loch Suainbhal is referred to as the Searrach Uisge. The creature was said to inhabit the loch for over a century and in the nineteenth century it was described as being like an capsized boat when it was seen swimming around. Another description has it being forty foot long and eel like.
It is said that lambs would be offered to the creature by the locals as an annual sacrifice to appease the beast.