The After-Hours Adults-Only Events ExplainedPicture a waterpark with zero screaming kids, no long lines, and a totally relaxed vibe. That is exactly what the adults-only after-hours events at Carmel Clay deliver. During the adults-only events, all of these features stay open. Grabbing a meal before an evening waterpark session is easy, and there are enough choices within a short drive to suit most preferences. The waterpark alone is worth the trip, but the adults-only events push it into a different category entirely.