Does it make sense to bring bikes while camping at Pfeiffer Big Sur? Thinking about the best way to get the family to the beach from the campground.

Definitely possible. The road is not far from the campground. Just remember there are some hills - but not big ones. Only one beach realistically accessible from Pfeiffer. Another beach - Molera is farther north... But it requires a walk on a sandy road... And crossig a creek on a log - not super easy for bikes from parking lot..

Bikes are great. But it might not be the best way to get a family to the beach.