Zach Wilson and his girlfriend, Nicolette Dellanno, appear to be more serious than ever ... 'cause the NFL quarterback brought the model to his family's getaway once again this past weekend -- and everyone appeared to have a blast!!
The couple and the Wilson clan took in all the sights and sounds that Lake Powell had to offer for their holiday weekend excursion ... and based on the pics Dellanno posted from the vacay -- the fam seemed super happy to be around Zach's bae.
They got a boat for the occasion .