How good is the walleye fishing in South Dakota? Good enough that Lake Oahe was chosen as the site of an international walleye fishing championship in 2011. (Unlike many big-name tournaments, this one features a catch-and release rule designed to protect fish resources.) SDPB rides along with several of the pros participating in a pre-tournament scouting of the big lake - a rare chance to see some of the nation's best competitive anglers at work and up close.