Lough Derravaragh is a picturesque lake located in County Westmeath, Ireland. It spans approximately 5.5 miles in length and is known for its scenic beauty and rich biodiversity. The lake is surrounded by lush greenery and is a popular spot for fishing, boating, and birdwatching. The lake is also famous for its connection to the Irish legend of The Children of Lir, where it is said that the children were transformed into swans and spent many years on its waters. Lough Derravaragh is part of the River Inny system and plays an important role in the local ecosystem.