RedactedNarrative: Vessel 01 was returning to callville bay marina traveling west on the waters of the boulder basin of lake mead. At the time visibility was reduced due to darkness and cloud cover. Waves were between 2''-6'' due to high winds. Vessel 01 struck a submerged rock near the area of finger cove, disabling the vessel''s engine. The large waves began flooding the disabled vessel and pushed it ashore to the beach of finger cove. Occupants evacuated the vessel at that time.