Protesters in kayaks descended upon the Trump National Golf Club in Sterling, Va., Sunday, during the Senior PGA Championship.

At Trump National Golf Club, where protesters on kayaks just showed up at the Senior PGA Championship pic.twitter.com/rJJMi24Xy7 — Noah Weiland (@noahweiland) May 28, 2017

The protest was organized by Indivisible Winchester, a nonpartisan group that promotes government participation, according to its Twitter page.

The kayaks were timed to meet what's easily one of the biggest crowds here so far: John Daly's. Daly is a Trump supporter pic.twitter.com/EEgoAYi2iW — Noah Weiland (@noahweiland) May 28, 2017

"Trumpty is an unplayable lie" one sign reads pic.twitter.com/XQckz4NDXO — Noah Weiland (@noahweiland) May 28, 2017

After a short time, a police boat arrived on the scene and asked the kayakers to turn around, according to a New York Times reporter.

A police boat has now asked the kayaks to turn back and head in the direction they came from pic.twitter.com/y2D9oJh3Cu — Noah Weiland (@noahweiland) May 28, 2017

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The Senior PGA Championship teed off at the Trump National Golf Club on Thursday. The tournament marks the first major golf tournament held at one of President Trump’s courses since he took office.

Trump’s son Eric did not rule out the possibility of his father making a surprise appearance.

“All these players are his friends,” he said Thursday, according to the New York Times, adding that his father is a “golf fanatic.”

Trump has not shied away from his family’s golf courses since becoming president, visiting 25 times since taking office, according to The New York Times.

Trump has even conducted presidential business at his golf courses. He famously spent a weekend working with Japanese President Shinzo Abe at Mar-a-Lago in April.