When I was in college, I participated in an activity, which was actually a barbecue, but the place we went to was right by the river. Because we were informed in advance that we could fish, many people took fishing guys with them. As a result, we caught a lot of fish and crabs and had a good time. If the landlord wants to improve everyone's enthusiasm, he can take the picnic as the theme of the activity and take fish as a by-product, so that he can catch fish and have fun.