Henley Royal Regatta 2017: Day One

PA Spectators gather on the Berkshire side of the River Thames during day one of the Henley Royal RegattaPA
Spectators gathered for the five-day rowing spectacular that is the Henley Royal Regatta, on the River Thames
PA Members of the Oxford Brookes University rowing crew bring their boat back into Green's field during day one of the 2016 Henley Royal RegattaPA
Crews also readied themselves, with racing starting at 09:00 BST. Oxford Brookes University's rowers carried their boat across the site to take part in the second race
PA The Norwich School rowing teamPA
The Norwich School rowing team were applauded as they made their way out of the boat tent
PA Crew from the University of Bath congratulate each other after winning their race.PA
This University of Bath crew won their contest and hugged their opponents afterwards
PA Crew from the Tabor Academy in Massachusetts, USA, adjust their oars outside the boat tentPA
The Tabor Academy in Massachusetts, USA, studiously adjusted their oars outside the boat tent
Getty Images Crew prepares to race at regattaGetty Images
They are one of many international crews competing
Getty Images Competitors warm up on rowing machines on site ahead of their racesGetty Images
Competitors warmed up on rowing machines ahead of their races
Getty Images Spectators in boating blazersGetty Images
Boating blazers are a common sight among the crowds at the event
Getty Images Spectators at Henley RegattaGetty Images
Also popular: Moustaches
Getty Images Spectators duck under rowing boatsGetty Images
The site is a hive of activity, with spectators occasionally having to duck to avoid passing boats
Getty Images Spectator at Henley regattaGetty Images
Numbers are likely to be bigger than ever, with 200,000 people expected
Getty Images A crew carries boat at the Henley Royal RegattaGetty Images
The regatta was first held in 1839, and apart from two world wars, has been held every year since
Getty Images Man at Henley RegattaGetty Images
According to the regatta's organisers, the total cost of staging the event is almost £3m each year
Getty Images Rowing crew gather for talkGetty Images
More than 200 races in all will take place at the prestigious event