The Baltic Sea is in crisis – overfertilisation, intensive use and the loss of valuable habitats are taking their toll. At the same time, current projects by Rewilding Oder Delta and partners show that solutions are possible: sustainable fishing, restoration of seagrass meadows and reefs, more dialogue across national borders. At the international conference ‘Sea of Opportunities’ in Stralsund, concrete steps were discussed – and a strong network was established to promote the protection of the Baltic Sea in the future.