Rangers rescued six members of a California family last Thursday after they had to abandon their boat near Castle Cove when it was swamped by four-foot waves created by high winds on the lake. The boat then sank, leaving them in the water for about an hour until rangers reached them. Fortunately, all were wearing lifejackets, which almost certainly saved their lives. The original report of the sinking was made to marina staff at Las Vegas Boat Harbor, who in turn advised the park. Boat Harbor staff were first on-scene with two boats and pulled three of the people from the water. There was only one injury â a woman in her 60s suffered minor lacerations and exhaustion and was taken to a hospital. A wind advisory was in effect at the time, calling for winds of 20 to 35 mph with gusts over 50 mph.