Llangollen. Ty'n Dwr Hall was built in the 1860s by John Dickin on land once belonging to the old Pengwern Hall estate. It has in the grounds what is considered to be the largest yew tree in Wales. The small cottage next to the Hall pre-dates it and was visited by George Borrow in 1854, when he remarked upon the nearby yew tree. How long people have lived on the site of Ty'n Dwr is not clear, but a well in the cellar of the hall is much older and is said to date from Saxon times. Ty'n Dwr has for the last forty years or so been a youth hostel owned by the YHA.Object Reference: 2005.20.102