The Provincetown Community Compact, sponsor of the 30th Swim for Life this year, will be celebrating its 25th anniversary in 2018. The Compact’s mission is to nurture the well being of the community, connecting people, place and enhancing the arts, the environment and the economy. Initiatives include the Think-ubator, which sheperds grass roots projects and organizations through fiscal sponsorship and management, and the overseeing of two historic dune shack residencies in the Cape Cod National Seashore.