The Beaulieu River, formerly known as the River Exe, is a small river flowing through the New Forest in the county of Hampshire in southern England. The river is some long, of which the last are tidal. Unusually, the entire river, including its bed, is owned by Lord Montagu of Beaulieu.The Beaulieu River rises near Lyndhurst in the centre of the New Forest, and flows east and then south across the forest heaths to the village of Beaulieu. At Beaulieu the river becomes tidal and once drove a tide mill in the village. Below Beaulieu the tidal river continues to flow through the Forest, passing the village of Bucklers Hard and entering the sea through the Solent.The tidal river below Beaulieu village is navigable to small craft. Bucklers Hard was once a significant shipbuilding centre, building many wooden sailing ships, both merchant and naval and including Nelson's Agamemnon.Since 2000 the navigable channel at the entrance to the river has been marked by a lighthouse known as the Millennium Lighthouse or the Beaulieu River Beacon.EtymologyThe name "Beaulieu" is French, meaning "beautiful place".