On Thursday and Friday, the women's and men's 10km marathon swim events were held. Athletes swam laps in the Serpentine in Hyde Park, for 6.2 miles. Almost two hours of physical activity is exhausting and depleting, and they can't exactly hop out of the water for some Gatorade, so how do they get their in-race nutrition? With the help of a long pole, and acting like an otter.

First, they find their country's flag, which designates their water bottle and are positioned on the end of a long pole being held by their coach ...

... grab their drink ...


... and then do their best otter impressions, rolling on their backs to drink from the bottle.

The Olympics, you guys!

(Photos by Ryan Pierse/Getty Images)