SMS Karlsruhe
Depth is the range from the top of the site to its usual maximum; "recommended cert" is the mainstream-agency level operators usually ask for, not a legal rule. Currents and visibility change daily — treat everything here as planning ranges.
Karlsruhe is Scapa's teaching wreck and none the worse for it. Lying in the mid-twenties and heavily worked by past salvage, she has opened up into a readable cross-section of a WWI light cruiser: bow guns still recognizable, capstans and armored control tower among the debris, deck planking traces, and machinery spaces yawning where plating has gone. The extra light at this depth lets the marine growth show its colors — plumose anemones, sponges and shoals of juvenile fish — and gives photographers their best ambient conditions of the fleet. An ideal shakedown before the battleships.
The moment you come for: Readable cruiser layout, best light of the German wrecks, gentle depths for long dives
Topography: A light cruiser lying on her starboard side, well broken down, in about 25–27 m
Entry: The shallowest of the German warships and usually the first dived on a Scapa week.
Know before you splash
Hazards: Sharp, unstable wreckage and monofilament snags; silt lifts easily inside the broken sections.
Conservation: Scheduled monument; artifacts stay where they lie.
Nitrox: Worth it here — profiles sit in the range where enriched air meaningfully extends no-stop time (with the training to use it).
For photographers
Wide angle: ★★★★☆ · Macro: ★★★☆☆ — editors' 1–5 rating of what this site gives each style of shooting