One of the traditional foods at the festivals here are Steckerlfisch. 'Steckerl' comes from the Bavarian dialect for little stick. The fish - in their entirety - are cooking on sticks that are tilted above charcoals, so be prepared to dig around the bones. Typically Mackerl or a 'Lachsforelle' Sea Troute are used.
Occasionally they can also be found at biergartens in the area as well. Usually the tables surrounding the fish stands are cleared out for the obvious reasons. You have to feel for the guy that cooks them day in and day out.