We sail there twice every summer for a week to ten days, hanging out at Dozier's Regatta Point Marina and venturing from there to Tides Inn, Urbanna, etc.
Doziers is fabulous and just inside Broad Creek, so it gets good breezes on hot days.
Further up is Deltaville Yacht Center, a Catalina dealership, but it's a little hot in summer.
Stingray Harbor has magnificent sailboats and is a quick run out to the river and Bay.
Deltaville Marina on the south side is an Island Packet dealer with most motorboats but neatly tucked away from nor'easters.
Across the water from DM is Fishing Bay Yacht Club, the class act of the place and they encourage memberships.
There are other marinas, but you get the idea. Think of it as Rock Hall South.
Suggest you drive down some weekend and check them out.