Thin out the carp population at Rock River Rescue’s Annual Cash for Carp Tournament at Riverside park in Watertown. You’ll receive $2 for every common carp caught ( buffalo, red horse and gar do not qualify). There will also be prizes for the largest and smallest carp by length. There is no cost to enter just register before you start fishing. Registration begins at 7A.M. The tournament ends at 3pm. Food available.