The journey began at Folly Bridge near Oxford and ended five miles away in the village of Godstow.

"Has the lake we sailed over to reach Folly Bridge any particular history?"

In memory of Warnock, the College has a student-accommodation building near Folly Bridge named after him.

Robert Gunther, the historian of science, bought 5 Folly Bridge, an unusual castellated house by the bridge, in 1911.

After Christchurch Meadow is Folly Bridge where are the landing stages for pleasure boats.

After Folly Bridge, the river runs through suburbs where it is crossed by Grandpont Bridge.

The major predators at Folly Bridge are domestic cats, small boys and the occasional fox.

Back at Folly Bridge the males are left in large all-male flocks.

These males stick to their old habits, arriving at Folly Bridge at about 8 am and sleeping for one or two hours.

This now forms the major route between the city centre and the south, and the crossing point is near St Aldate's over Folly Bridge.