The Serrana was a defensively armed British steamer of 3,677 tons heading from London to Barbados. She was torpedoed by Oberleutnant zur Zee Karl Stoeter of UB-35 on the 22nd of January 1918. 3 crew died in the attack, and a further 2 died in the confusion that followed as they abandoned ship. The Serrana was taken in tow by a patrol boat, but she ran aground on Bridge Reef where she finally broke her back. The stern separated and drifted almost 1/2 mile up the Solent before finally sinking.
Both the bow and stern have been dispersed with explosives, but much remains to be seen on the seabed. The stern still retains her two boilers and the triple expansion 3 cylinder steam engine lies on the seabed along with the rear deck gun.
This wreck is easy to find as the New Forest National Park Authority have attached a permanent buoy to the wreck as part of their Underwater Heritage Trail. They also have an interesting Serrana video on their website.
Location: 50 39.62 N 01 36.16 W / 50 39.872 N 01 35.836 W