The ION fishing area at Lake Þingvallavatn is without a doubt one of the best BIG brown trout fishing areas in Iceland. Iceland Outfitters and ION fishing have reached an agreement on sales during the summer and autumn days, which will no doubt appeal to well-meaning anglers. Every year, trout are caught well over 20 pounds and few fishing areas in Iceland are as generous as the ION area. Many dream fish have been caught here in recent years and no doubt that many will catch the biggest fish of their lives in the area.