Münter was one of the first celebrity activists to visit the BP Oil Spill; she arrived in Venice, Louisiana on May 2, ten days after the "Deepwater Horizon" sank to the bottom of the Gulf of Mexico, the same day President Barack Obama arrived. She spent a week at the spill, documenting her experience there. On July 13, 2010, Münter returned and toured areas of Louisiana affected by the BP Oil Spill as part of a Sierra Club sponsored event involving 10 current and former athletes which included tennis star Chanda Rubin, Olympic skier Stacey Cook and NFL stars Ovie Mughelli and Mike Alstott.