SMS Markgraf

Markgraf fought at Jutland and now lies almost fully inverted in the deepest water of the German fleet, her upturned hull rising from around 45 m to the mid-twenties. The scale registers slowly: a wall of riveted plate longer than a football pitch, rudders raised toward the light, and along the port side the crushed gallery where casemate guns and portholes emerge from the shadows. This is a dive of atmosphere rather than easy sightseeing — dark, deep and unforgiving of poor planning — and for many wreck divers it is the single best thing in British waters.

Khoảnh khắc bạn đến vì nó: Dreadnought scale in the gloom, casemate guns along the hull side, the fleet's most prestigious tick

Địa hình: A Konig-class battleship lying nearly upside down on a silt-and-shell seabed at about 45 m

Điểm vào: Shotline descent from Stromness charter boats; the deepest and most demanding of the German fleet.

Nguy hiểm cần lưu ý: Depth, darkness, silt and inverted orientation that disorients; penetration is a technical-team undertaking only.

Bảo tồn: A scheduled monument: nothing is removed, nothing disturbed. A century of salvage history already scars the fleet — divers should not add to it.

Nitrox: Đáng dùng ở đây — các hồ sơ nằm trong khoảng độ sâu mà nitrox có thể kéo dài thời gian không dừng một cách thực sự có ý nghĩa (khi đã được đào tạo sử dụng).