Blue Tubes
Öland's largest Bronze Age cairn in a beach environment.
Blue pipe is Öland's most famous Bronze Age cairn and at the same time the largest with a diameter of 40 meters and a height of 3 meters.
The grave is located below the road between Borgholm and Köpingsvik and was built very close to the beach in a flat and low-lying area. In the immediate surroundings there are several bowl pit blocks, i.e. earth-solid stones with knocked-in pits that may have had a religious/ritual meaning. Bowl pits in the Nordic countries are usually found in environments that can be linked to the Bronze Age or the Early Iron Age. The grave has been examined twice, the first time in 1849 by the National Heritage Board, which then concentrated on the central part. Treasure seekers had already been here, and in the remains of a rock coffin only bone fragments and a bone button were found. In connection with a restoration in 1927, four graves were found, two of which were skeleton graves and two fire graves. The two skeletal graves could be dated to the Early Bronze Age, while the two fire graves, which were located superficially in the cairn, belonged to the Late Bronze Age. In one of the fire graves, a sword was found that was probably made in Denmark and with no other equivalent in Sweden.