The town square, where there is a weekly open-air market on Wednesdays, is the location of the famous seventeenth century "Great Cross of Hendaye", a stone cross carved with alchemical symbols that occultists find to contain encrypted information on a future global catastrophe.
The ruins of the early seventeenth century fortifications, which were reinforced by Vauban in 1685, and the old cannons facing Hondarribia, are one of the features of the promenade along the Bay of Txingudi waterfront.