This park has (a long) history.The park (is) on the main street.(This) park has a lake.The lake is very beautiful.The water is very clean.There are all kinds of fish in the lake.You can go boating and fishing (in the park).(You can also go for a picnic there).(I) wish (that) everyone will have a good time.
因为go boating/fishing和go for a picnic结构不一样 所以我帮你分开写了.别的基本没什么问题.