Mason Lake is located eight miles Southwest of Belfair in Mason County. The largest and deepest lake in Mason County, it's approximately 1,000 acres in size with more than 10.9 miles of beautiful shoreline. The maximum depth is 90 feet with a mean depth of 48 feet. Once a refuge for week-end retreats, there are more and more full time residences, although there are still some cabins to be had. There aren't many developable lots left anymore.
Water skiing and personal watercraft are allowed. There is public access and a public boat launch.
