harry fawcett has the story. >> it's become a winter tradition, january is ice fishing season.ot just for a full hardy enthusiasts. tens of thousands come with their own fishing style to a frozen stretch of river. >> it's fun. this is my third year here. times we come twice a year, the family. there's the fun of eating as well. >> the common factor in the hunt for the prize, the trout. rewarded with the arrival of the fish truck. three to eight tonnes of farmed fish are added to the river. when fishing armageddon arriving, it's been being in the right place at the right time. >> this is my first time. it's fun already, you know. >> if that's not enough of a challenge, you can try this. it's cold enough when all this happens, let alone dressed like these guys. >> the object is to catch the fish by hand, and in case the discomfort levels were not high enough, success means a wet fish down the front of your t-shirt. fish can be consumed roasted, raw, or for the brave, wriggling. it's a boon for the town, a festival in its 12 year, becoming ever more important to its economy. >> th