Let's ride from the Picnic out to Mattituck on Peconic Bay Boulevard, visit the submarine base at New Suffolk and then cut up to the West Side of Mattituck inlet.  The Park there gives a nice view of the inlet and the sound.  Pretty water views and you get to see Peconic Bay and Long Island Sound.  Multiple opportunities for rest stops.  Bring a snack for when we stop at the Mattituck inlet park.  This will be a very moderate B- pace.  We'll stay as a group, no one gets dropped.