Lucky Peak is the most popular. It gets crowded on a summer weekend. Arrowrock is much better but you have to put up with the road in. I ride on weekdays in the summer at Lake Lowell, Black Canyon, Arrowrock and Lucky Peak. My favorite river to ride is the Snake at Lewiston but that is 5 hrs. away. Wakeboarding and wakesurfing have become very popular, you hardly ever see a waterskier anymore.