短文理解，回答问题

Yesterday was Sunday. It was rainy. Mike got up at eight. He watered the flowers and did some exercises. Then he phoned Helen. An hour later, they went to the Zhongshan Park by taxi. The park is very beautiful. They had lunch under the tree. Then they went boating. Mike rowed well, but Helen rowed faster than him. They rowed for a long time. They went back at 4:30. After they got home. Mike's mother cooked some nice food for him. They are very delicious.