On July 11, at 13:18 on Lake Izumrudnoye, rescuers of the Kazan SRW, who were on duty at a place of mass recreation near the water, saw that four people turned over on an air mattress in the center of the lake and began to call for help. Rescuers from the Kazan siege advanced to them on a watercraft and brought them ashore. First aid was not required, a preventive conversation was held.