Widgeons are great on a mooring!
I owned an O'Day Widgeon (1969 model) for 8 years, I sailed her on Buzzards Bay and kept her on a mooring near our cottage every Summer. My typical season was launch the first Saturday in May, haul the Saturday of Columbus Day Weekend. I used bottom paint (Interlux Fiberglass BottomKote) and would remove the centerboard each Fall (always seemed to leak a bit of water, would dry over the winter). In the Spring, I would paint the centerboard before putting it back in, and always rolled the boat upside down to paint. My Widgeon had the lever-operated CB, if you have the line-operated board..removal is not as easy, however you will get enough paint on it if you extend it all the way with the boat upside down. Be sure to paint the inside of the CB trunk.One "problem" with being on a mooring is that the Widgeon is not self-bailing, mine filled with rain in one bad storm and the wind blew her over. However, that was one storm in 7 full seasons! I always brought the sails ashore during the week (when I could not sail), and had a line on the rudder (stowed laying across the stern seat) "just-in-case". All loose gear that did not come ashore with me was stowed in a compartment that I added between the forward flotation tank/seat and the seat that the mast steps through.If you have not already purchased an anchor to use when you stop at a beach or to fish, or whatever, I'd suggest a 2 1/2 pound "Danforth" anchor, I used a 4#, but the 2 1/2# held fine. I assume that the mooring that you will use is all set, be sure that if it is a mushroom mooring, that it is at least a 50# or larger.