Öppet Hav arranges activities on land, at sea and in the air, with its office on Kastellholmen. Its land activities include team programmes tailored to groups and their objectives. Sea options range from high-adrenaline outings to calmer time on the water. The company also offers combined land-and-sea experiences. Visit Stockholm lists archipelago trips by helicopter, RIB, sailboat or seaplane, alongside city activities such as Segway sightseeing, escape rooms and archery. Öppet Hav says its air services can include transport, sightseeing or a meal at an archipelago restaurant.

The company says its outdoor operations run mainly all year and that activities are adapted to the weather. It does not cancel because of bad weather or strong or absent wind unless it considers an activity unsafe. If conditions are too poor for an outdoor land activity, customers can switch to an indoor one. On boats, guests receive windproof and waterproof outerwear or warm flotation suits. Participants should wear clothing and shoes suited to the activity and weather; Öppet Hav recommends an extra warm sweater in colder months.

Book through Öppet Hav and tell participants what clothing to bring. The available information does not give activity prices, schedules or visit lengths, so check with the company when arranging a specific activity.