Beautiful hike. And definitely quite challenging.
The hike has a few parts: the initial part is less than half a mile to an access point to the beach, could be doable for families, I saw people with flip flops walking it. Many people seem to bring beach gear and set up for the day. Incredible scenery and amazing ride pools nearby. If you don’t go to the beach there, the trail continues until another beach access point, maybe 1.5-2 mile strenuous hike where you can choose to go to the beach, or continue on to the end loop part. The end loop part is partly wooded, partly open and very beautiful. The trail ends on the beach, where you can then continue on to a sand bar, or head back along the beach.

I spoke to a few people along the path were told the path isn’t a loop. It IS a loop, with one way being along the beach.

Definitely plan to be on the beach portion at low tide! It’s very special.