Young boys climbing cliffside without adults nearby

As discussed during the dispatch call, radio traffic reports a possible welfare concern involving two young boys, estimated to be between 4 and 7 years old, seen shirtless and wearing reddish underwear while wandering alone in a city park. The caller reports that no adults are visible nearby and that the children are attempting to climb a steep cliff area near a waterfall. The situation appears to involve a potential missing or unsupervised children incident near the park and an adjacent residential area.