My sister and her husband own a house near the beach in NJ. Every summer we agree on a day and all of her children and grandchildren and all of my children and grandchildren along with my dad go down to the beach house for the day.
We spend hours on the beach and the kids have a blast. One year my brother-in-law took the kids and grandkids out in the bay on a raft pulled by one of those bay runners. I can’t think what the name is. The bay is calmer than the ocean. Even the little ones had fun.