RedactedNarrative: On 07/30/2016 at approximately 06:30 hours Lake Mead Recreation Area dispatch was advised of two sinking vessels at Lovers Cove within the jurisdictional boundaries of the Lake Mead National Recreation Area. No one was on board the vessels and the individuals were on the shoreline. Officer1 was advised of the incident at approximately 07:48 hours. Myself and Officer1 boarded Park Service Vessel 21 and responded to Lovers Cove and arrived on scene at  approximately 09:20 hours. When both units arrived I observed to vessels partially submerged at lovers cove .