Gisele Bundchen: 'We Need to Protect Our Beautiful Planet'

Gisele Bundchen goes for a walk along the Charles River on Thursday (May 31) in Boston, Mass.

The day before, the 31-year-old Brazilian supermodel – who’s rumored to be pregnant with her second child – enjoyed a day out with her 2-year-old son, Benjamin, at the park.

PHOTOS: Check out the latest pics of Gisele Bundchen

“Look what I found across in the middle of SP on my way to work. I couldn’t help but stop to feel a bit of the energy. We need to protect our beautiful planet. #vetatudodilma,” Gisele recently wrote on her Facebook page with a photo of a huge tree.