Ballaglass Glen (Glion Valley Glass) in the Parish of Maughold is part of Cornaa Glen. It totals about 17 acres. It has a rock-bedded stream that flows through the wooded glen and the surrounding woods have an abundance of bluebells in springtime. It has easy access from the electric tram, which stops at its top entrance. By car, turn down to Maughold Village at the Hibernia, on the main Laxey to Ramsey road, then turn right down the road marked Cornaa. A large car park is provided at the bottom entrance to the glen.