This state park is really cool. There is a huge salt plain where you can dig for crystals. Bring your own shovel and start digging. After a foot or two the hole will begin to fill with water. You then use the water to wash away the dirt and reveal the crystals. They are very easy to find. It’s a great activity for kids. But there is no shade and it can get hot and windy so bring water and sunscreen. Crystal digging is only available from April 1 to October 15 due to the area being a migration stop for whooping cranes. We camped at the river road campsite. It was a pretty good campsite next to the river. Has a playground and the bathroom was pretty clean. Make it a point to walk up the stairs to the top of the dam. There is a great view of the lake.