Increasing pressures on land use in urban areas in recent years, has led many waterfront cities to rediscover their waterfronts. These areas offer great potential for high quality urban regeneration characterised by a vibrant mix of refurbished historic buildings and new developments. With new economic activity, employment and housing, and a lively mix of households, new waterfront neighbourhoods can contribute to a city's overall developmental ideas. The Waterfront Communities Project brought together nine port cities of the North Sea. The lessons learned during this project have been summarised in a special toolkit called 'The Cool Sea' that aims to disseminate this knowledge more widely.