Fishing for all species is still slow. Water levels are down 6 feet since May.The boat dock is no longer in the water and has been removed. Jumbo requires an annual ...more fishing/hunting license, or an annual state wildlife access permit to enter Jumbo, per person ages 19 to 64. The minimum size for walleye andwipers is 15 inches. Report courtesy of www.kansasangler.com and Zeiner’s Bait and Tackle.