The Bay of Biscay Feeder is a body of water located in the Atlantic Ocean off the coast of France and Spain. It is fed by four rivers: the Loire (5 letters), Santander (9 letters), IBERIA (6 letters), and Bretons (7 letters). The Loire is the longest river in France, while Santander is a port city in northern Spain. IBERIA is a peninsula in southwestern Europe, and Bretons are an ethnic group native to Brittany, a region in northwestern France.