🇦🇽Aland

Ask the operator to confirm its current permit, exact dive area, qualified dive leader, departure and return time, depth and gas plans, buddy suitability and reported marine conditions. Drysuit proficiency, cold-water regulators, gloves, redundant lighting, SMBs and safety gas procedures may be essential. Deep wreck water can remain around 4°C despite a warmer summer surface. Keep clear of wreck interiors, fragile wood or steel and fishing nets; obey specific Hindenburg and other restricted-wreck conditions. The dive team should carry oxygen, reliable communications and an agreed evacuation and missing-diver plan. Respect prudent no-fly guidance following decompression exposure.

Aland Health and Medical Care (AHS) provides hospital services in Mariehamn, with the public Aland Central Hospital. In any serious injury or possible decompression illness, call 112, report the diving exposure and follow professional instructions. For emergency rescue at sea, the national maritime alarm line is +358 294 1000, and MRCC Turku can be reached at +358 294 1001. The location and availability of an on-island recompression chamber were not independently verified; do not promise a fixed transport time. Arrange dive-specific insurance and discuss evacuation arrangements with the operator before departure.

The Aland Maritime Cultural Heritage Act protects qualifying historic wrecks and submerged remains. Do not enter wrecks, disturb or remove objects, anchor into fragile structures or assume all catalogued sites are open. Report newly discovered protected remains or apparent damage through appropriate authorities. The Baltic's underwater plants and rocky shallows are vulnerable to trampling and careless anchoring. Respect private jetties, nature-reserve signs, seabird nesting areas and seasonal landing restrictions on outer skerries. Avoid contact with seals or nesting birds and do not enter water with suspected cyanobacteria.