We went on a trip to Glendalough. We stayed in the Youth Hostel. Glendalough is a beautiful place. We walked all around the lakes, and up the mountains. We saw the round tower- it is 30 metres high and very, very old. We saw how the monks wrote the Book of Glendalough in 1131. We tried writing with a quill. We were very tired that night, so we slept well.