THE NERVION RIVER RUNS THROUGH THE PORT AND CITY OF BILBAO.
IT IS ACTUALLY A MIXTURE OF SEA WATER COMING FROM THE ATLANTIC OCEAN HENCE IN SPANISH IS NAMED "LA RIA DEL NERVION" AND FRESH WATER COMING FROM THE LOCAL RIVER HENCE NAMED
"EL RIO NERVION " THEREFORE IT HAS A DUAL NAME.
THE RIVER IS NAVIGABLE BY SMALL SIZED PLEASURE AND TOURIST BOATS BUT CLOSE TO THE MOUTH OF THE RIVER NEAR THE PORT
LARGE COMMERCIAL VESSELS CAN ACCESS THE PORT FACILITIES.
THE RIVER IS SUBJECT TO 6-HOURLY TIDES WITH APPROX 3.5 METERS
HEIGHT BETWEEN THE LOW AND HIGH TIDE.