I made this trip on a number of occasions as a boy. As I recall, the beach had quite a few surface stones; not at all like the beach one would find at Gropp's Lake. I also recall going to the "Gravel Pits" over in the Penn Valley area of Morrisville, where there was also a stony beach. As to the graphic above, the Delaware even then was a bit polluted, but not like it is today,.