根据短文内容，选择正确的答案。

This is a big nature park. In the park there is a forest and some mountains. On the mountains there are many trees and some beautiful flowers. There is much grass, too. There is a long path(小路) on the mountain. We can walk there. There are two lakes in the park. One is big, and the other one is small. We can swim and fish there. What can you see in the lake? Wow, there are many fish. What a nice park!