The SS Bakio was a British-built steamship operated by the Spanish shipping company Naviera Sota y Aznar.

[1][2] The SS Bakio was built by the Campbeltown Shipbuilding Company in 1904 and sold to the Spanish shipping company Naviera Sota y Aznar, based in Bilbao.

[3][4] The ship was last spotted on 29 April 1916 off the coast of Peniche, Portugal.

[3] The ship was traveling from Sagunto, Spain, to Montreal, Canada, carrying a cargo of iron ore.[3][4] The ship was sunk on 30 April 1916 by German U-boat SM U-20 in the Atlantic Ocean after being struck by torpedoes.

[1][5] The schooner was sunk 700 miles (1,100 km) away from the SS Bakio's last known location at Peniche, and at the U-boat's top speed of 15.4 knots (28.5 km/h; 17.7 mph), it would have taken just under 40 hours to travel from the SS Bakio's last known location to the site the Bernadette was sunk.