This a great sandy beach with fantastic swimming for the kids. The water is crystal clear, and not as cold as you may think. If the weather is warm, it's very refreshing. There are virtually no waves, so the water is safe for small kids. The large swimming area is bouyed off so boats can't come near the beach.
We wish this beach had more services. It would have been nice to be able to buy food and drink, and rent some water toys. Make sure you bring everything with you to Sand Harbor, it will be worth it. It's a Nevada state park, and there was a $6 fee.