SMS Dresden — a protected Cöln‑class light cruiser wreck in Scapa Flow lying on its port side (length 115 m, weight 5,620 t) with shallowest/ deepest points about 25–38 m; sinking date 6 Dec 1918, launched 25 Apr 1917 — diving allowed but it is a war memorial so removal of artifacts is strictly prohibited; visibility best in May and October.