Brook trout somewhere in Labrador. It's the best you'll get for a shot to break the longest standing angling record of all time.
My brother and I fished at Anne Marie Lodge years ago. Cooper's Minipi Camps. It was great. They advertised a 5 lb average on brookies. The way they arrived at that number though, was, they did not weigh fish under 3#, of which we caught a lot. My biggest was just over 5# and my brother's went over a bit over 6#. Great trip!
