Fishing for these sport fish is a true anglers dream. Using fly rods or spin cast setups you can enjoy some of the world best sport fishing. While most fishing is catch-and-release you will have pictures to prove you were there. The world record Dolly Vardon was 19 lb. 4 oz. on the Kenai River, Alaska in 1998. The world record Rainbow was 42 lbs. 2 oz. Bell Island, Alaska on June 22, 1970 by David Robert White. The best fishing for these sport fish is between June and September.