Its first trip, of 24 miles, was made on 19 February 1853.
Against the current, the 4 mile trip takes 2 hours.
The fastest time is 17 hours 15 minutes for a trip of 805 miles.
The eight mile trip to the station was done in a few minutes.
The 180 mile trip took place on September 1, 1981.
The 2,478 mile trip took nearly six months to finish.
D1 surprised researchers when she made a 140 mile trip in a single day.
Lack of money meant he began the 770 mile trip on foot.
It seemed a waste of time to spend six good hours in a short 3,500 mile trip.
As he has for 20 years, in June he will set out on a trip of 5,000 to 6,000 miles.