Decision Point State Marine Park is located at the eastern end of Passage Canal approximately eight miles from Whittier.

This popular park is aptly named as one decides at this point whether to head out into the larger expanse of water of Port Wells.

This park is generally used by kayakers and small boat users, as there is no adequate anchorage. Along with forested uplands of spruce and hemlock, there are two excellent camping beaches.

A public use cabin is located at Squirrel Cove.