I remember when the Grimaldi children were small Grace would sometimes take them to the summer place the Kelly family had along the Eastern shore. Can't remember the state now, but I think her sisters went there, too. I wonder if Albert ever goes there?
Ranier and Grace would bring the kids to spend the summer with their "Pennsylvania cousins" in New Jersey and elsewhere in New England, but I don't remember exactly where. I can remember seeing photos in Life Magazine showing Grace and her siblings sitting in beach chairs talking while their kids were playing in the sand and running at the water's edge. It could have been any family get-together.
It looks like the twins are both going to be tall like their mother. From the look of the beach in the background, it doesn't look as if the public is practicing social distancing. I would hope Albert and Charlene are careful after Albert's illness.