I just saw this on Twitter via Three Sheets NW blog. We've tied to a buoy there and enjoyed a walk and listened to Christopher Peacock's organ playing and the history presentation describing the resort's beginnings as a private residence. There is contact info in the article. Great place to visit whether by boat or ferry, while in the San Juan Islands.
http://www.threesheetsnw.com/blog/2017/04/new-rosario-marina-docks-open-and-ready-for-boaters/
Craig
http://www.threesheetsnw.com/blog/2017/04/new-rosario-marina-docks-open-and-ready-for-boaters/
Craig