RedactedNarrative: The boat was launched from Pierce Island mid afternoon.  They headed to the mouth of the ocean but determined it was too foggy to go to sea so they stopped in the river where the sun was shining.  Anchored there, in the Piscataqua River for approximately 45 minutes.  They then headed towards the Great Bay Marina where the boat was anchored for 2.5 hours.  They then boated to Adams Point and turned around and on the way back struck an object with the propeller of the boat.  They were able to wave down a boat to get a tow.