At the Jersey Shore, family-my wife's 6 brothers/sisters, their spouses and kids-stuff happens, for me, at sundown or later. The reason for that is that my body, when exposed to heat and very high humidity, stops sweating and retains water which causes me to swell up kinda like the Pillsbury Dough Boy (slight exaggeration).
Consequently, I spend most of the day in our house (rental) in the air conditioning. I do venture out for short periods of time-making pictures being the primary motivator-but never to the beach. During the week I do make one obligatory late afternoon beach appearance where the clan spends the day.
After dinner, the clan assembles-utilizing bicycles-at one of the family houses (all rentals) for hanging out + libations. The kids are free to do whatever as long as-as my dad used to say-it doesn't involve police or pregnancy.