The shallow bay of Täktominlahti in Hanko has over the years suffered of too many nutrients, contributing to eutrophication, the over-fertilization of water and depletion of oxygen in the bay. Operaation Täktominlahti (site in Finnish) was established in 2009, and the current goal is to build a second wetland. The nutrient uptake by plants in this wetland will decrease the eutrophication of Täktominlahti. Follow the displays from the airfield in Hanko to the wetland. From the bird tower you will get an overview of the wetland and find out more about it.