Bill, don't know what you're sailing or what you draw. Mandeville is still a 20-mile sail, easy downwind in the south-sw breezes we'll have this weekend, but could be a "long" beat back if your boat isn't a close-winded greyhound, and maybe a little lumpy on the north shore if the wind kicks up.
Not much on the south shore, most of us sail between the Causeway and the Lakefront airport (easy reaches in a southerly). If you're a centerboarder, you could sail over to Pontchartrain Beach, tie up at the end of the old pier, and walk ashore for a picnic and a swim. Or anchor out and swim in if you draw a lot.
Also, a putt-putt through the outer and inner harbors at West End can be decent "sightseeing" with all the boats and boathouses. You can sail or motorsail the outer harbor, but need to motor the tighter inner harbor. and you can tie up at the dock at Landry's Seafood restaurant for a drink and a decent meal.
Pm me if you have any questions. Enjoy! looks like a warm, good-weather couple of days.
Last edited by nolatom; 03-25-2011 at 02:03 PM.