47 miles long, up to 7.5 miles wide, and with a total surface area of 245 square miles, the Gironde Estuary is the largest in Western Europe. The vast waters contain several isles, many of which can be observed from the banks of the Margaux Tourism. Take a river cruise, and enjoy the authentic landscape: natural embankments, riverside fishing huts, typical reed bed plant life that reveals itself at low tide, evoking faraway mangroves…