PIC: Pregnant, Bikini-Clad Kate Hudson Goes Kayaking

Credit: AKM Images

Rolling on the river!

Pregnant Kate Hudson was kayaking down a river in Paraty, Brazil on Tuesday afternoon.

The 31-year-old actress has been accompanying boyfriend Matt Bellamy as his band Muse tours through South America with U2. The couple is expecting their first child together this summer. (Hudson already has one son, Ryder, 7, with ex-hubby Chris Robinson.)

As Hudson paddled her red canoe solo through the water, she paired her growing baby bump with a striped string bikini and oversized sunglasses.

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Like many moms, Hudson kept her pregnancy top-secret during her first trimester. "My friends all thought I was depressed because I wouldn't leave the house. But I didn't want anyone to know for a long time. I was just hoping that all of a sudden I could show up somewhere with a big belly," she told British paper The Telegraph in late January.

She admitted that her life has gotten a lot more chaotic with baby on the brain. "I babble a lot. I forget words. And how to put sentences together," Hudson laughed. "I just give up."