In the southwestern part of the Odense Fjord are the islands of Vigelsø and the 21 hectare Tornø, although the latter is connected to the mainland by a 300-metre (980 ft)-long causeway. Vigelsø is the largest island in the fjord at 132 hectares and is an important breeding ground for migratory birds. It is part of the Special Area of Conservation "No. SPC 94, Odense Fjord" under the EU Habitat and Birds Directives and has been subject to close monitoring, with the target to reach at least "good" ecological status by 2015. The island is low-lying, the highest point of Østerhoved only reaching six metres above the sea. There is a 25 hectare forest on the northern part of the island while the southern part consists of coastal meadows.