My Dad kept his power boat at a Tripps mooring for years and they always treated him well.
I learned the hard way that my 15' sailboat designed for Essex, MA was not well suited to go out the river mouth. The low bow scooped up the swells and delivered them to all aboard after getting mist-ified by the coaming.
There are a lot of osprey to be seen on the Westport River.
Also check out the Westport Rivers Vineyards/Winery. We went to a free concert there one weekend a couple years ago. The music was free and the food and wine were reasonably priced. Great for an extended family group.