We see many rowing boats on the river and in the lock during the Regatta at Marlow.
Item title reads - River Season Opens. At Marlow the first Regatta was held....On the Thames. London.
We see the boats all lined up at the side of the river. M/S of a rowing boat with the rowing teams in the background as they row past. We see the boats waiting at the side of the river again.
Intertitle - 'at Boulter's Lock the usual Ascot Sunday picturesque scenes'.
Various shots of many boats in the lock, they eventually start to sail out again.