The large outer ward is as big as a football pitch, while the pear-shaped inner ward sits behind a deep, steep-sided, water-filled moat.
Mae’r cwrt allanol mawr gymaint â chae pêl-droed, a’r cwrt mewnol siâp peren yn eistedd y tu ôl i ffos ddofn ag ochrau serth, llawn dŵr.