1. The fish pond of Black Pit fishing has been specially treated, and the fish density is high, which is more challenging. Fishermen need to master certain skills and experience to catch fish in black pits.
2. Black hole fishing is carried out in fishing clubs or fish ponds. Fishermen can make like-minded friends, share fishing experience and experience, and increase social interaction. It has the advantages of challenge and sociality. So it's good to fish in Heikeng, Gansu.