Diving Sound of Mull - The wreck of SS Rondo. The 2363 ton Norwegian steamship ran aground on a shallow reef running out from the tiny rocky outcrop known as Dearg Sgeir, right beside its distinctive small white navigation beacon. The wreck stands nearly vertically on her bows in 50msw with her uppermost rudder in just a few metres. She is perhaps the most unusual wreck in Scottish water.