It is Saturday afternoon. Martin and his sister Pam are in Cambridge for the day.
They are looking at the beautiful old buildings of this University City.
Pam has a camera with her. She likes taking photos and sometimes they are very good. But sometimes they are not very good and Martin laughs at them.
It is five o'clock. Pam and Martin are going home now. They are tired after their long day. They are in the garden near the bus station. "Let's have a last photo of you," says Pam.