- The Dabob Bay Natural Area was established in 1984 to protect rare examples of intact salt marsh and sand spit plant communities within one of Washington’s highest functioning coastal spit and tidal wetland systems. Initially created as a natural area preserve (NAP), the site was enlarged in 2009, and again in 2016, to include additional land designated as NAP, along with lands designated as natural resources conservation area (NRCA). This provides additional opportunities for low-impact public use.