Check out this stunning drone video of one of the most famous waterfalls in Ireland. It's called Glenmacnass Waterfall, and it's situated in a valley of the Wicklow Mountains in the east-central part of the country. The waterfall sits on the Glenmacnass River, which drains the mountains and runs east to the Irish Sea. The waterfall has a total drop of about 80 meters or around 260 ft. In addition to being a beautiful sight in its own right, it affords some excellent views of the Wicklow Mountains.