How long did the writer spend to look the birds?

Answer the questions based on the text.

My Holiday

    Last week, I went to Singapore with my family. We went to the Bird Park. It was the most interesting places to visit. It is the langest bird parks in the world. I saw many birds there.

    They were kept in a large cage, and there hundreds of beautiful birds from many different parts of the world, such as: penguins, parrots, eagles and ostriches.

    I spent two hours to see all the birds. When I felt tired, I took a rest at the restaurant beside the large cage. The food was so delicious.

How long did the writer spend to look the birds?