Read the passage below and answer the questions.
Last weekend, Anna and her family travelled around the city. First, they went to the swimming pool. After that, they walked straight to the bakery to buy some bread and muffins.
Next, they turned right and found a small food stall selling ice cream. Anna got her favorite chocolate ice cream. Then, they walked round the corner and went to the bookshop. Anna bought a storybook, and her brother got a comic.
Later, they went to the cinema to watch a movie. To get there, they had to turn left at the next street and walk for five minutes. After the movie, they visited the shopping center to buy some clothes and toys. In the evening, the family went to a campsite to enjoy the fresh air under the stars. It was a perfect day!

What did they do at the campsite?