From wooded uplands to a green coast
Northern Blekinge belongs to the ancient bedrock landscape of southern Sweden. Fractures guide many valleys and watercourses, while moraine, lakes and wetlands occupy hollows between the ridges. Halen reveals this lake country around Blekinge’s largest lake. Mature beech, oak and pine grow among rocky slopes, mire and dark woodland pools. In warm summers, methane can lift the submerged peat known as Gasön towards the surface; it sinks out of sight as the water cools.
Farther south, broadleaved woodland reaches the sea and continues onto peninsulas and islands. Oak, beech and hornbeam mingle with pasture, shore meadow, bare rock and sheltered shallows. This wooded edge distinguishes Blekinge from more exposed archipelagos. Trees often follow the waterline, connecting terrestrial habitats with submerged wrack beds and protected nursery grounds for fish.
A river through fractured rock
The Mörrumsån gathers water on the Småland uplands before crossing Blekinge towards Pukaviksbukten. Mörrumsåns dalgång protects more than ten kilometres of a fracture valley. Between Hemsjö and Åkeholm, rock walls, steep slopes and boulder ground enclose a river that descends over thirty metres through a sequence of rapids. The valley then broadens towards Svängsta and the current becomes gentler.
Floodwater produces alder, birch, oak and ash woodland on islands and low banks, while grazing and mowing keep other ground open. More than half of Sweden’s freshwater fish species have been recorded in the river, together with one of the country’s largest populations of thick-shelled river mussel. Its diversity comes from moving water, exposed bedrock, periodic inundation and centuries of human use acting on the same valley.
Islands and old trees beside the Baltic
Hanö preserves a much longer history. Its residual hill began taking shape in a tropical climate and was later worked by ice. A raised beach near Fyrkullen stands about 53 metres above the present sea and formed roughly 14,000 years ago, when only the summit rose from the Baltic Ice Lake. One of Sweden’s largest hornbeam woods occupies the south, while currents continually redirect the Bönsäcken shingle spit in the north.
Eriksbergs stränder combines rocky coast, exposed ground, alder carr, beech woodland and small shore meadows. About five hundred beetle species and at least fifteen bat species have been recorded, reflecting veteran trees and long woodland continuity. Hanö, Halen, Mörrumsåns dalgång and Eriksbergs stränder therefore form a connected journey: from inland lake forest, along running water, to a wooded Baltic coast extending among the islands.
