The NURSECOAST-II project, running until September 2026, addresses eutrophication risk from seasonal wastewater spikes in coastal and archipelago tourism areas, where a single visitor's nutrient emissions can generate up to 17.5 kilograms of algae growth over a one-week stay. It has piloted constructed wetlands and nanobubble oxidation technology to manage these seasonal load spikes without costly infrastructure renewal, including a full wastewater system upgrade in Inkoo, Finland, though cross-border regulatory differences around wastewater reuse in irrigation have limited scaling of some solutions.

Two further projects address different dimensions of the same regional tourism system. The now-completed Bike across the Baltic project developed detailed route descriptions and signage for the EuroVelo 10 cycling route along Finland's Baltic coast, aiming to grow low-emission cycling tourism through the countryside, while benchmarking exercises extended lessons to Sweden, Estonia and Poland. Separately, the BASCIL project supported small rural food producers in South Savo and South Karelia in developing food tourism products, such as farm visits, local food tours and cooking classes, through training and cross-border exchange with food tourism developers elsewhere in the Baltic Sea region.

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