Our mission is to foster learning opportunities that inspire people of all ages to connect with, protect, and enjoy the unique estuary environment of Puget Sound. In 2010, we were granted federal 501 (c) (3) status and have been registered since 2007 as a non-profit corporation with Washington Secretary of State. South Sound Estuary Association (SSEA) DBA Puget Sound Estuarium is also registered as a Washington state charity.