Good news, bad news here...the naked women is a yogi swimming in Arctic water, but she is doing it to whales heading for captivity...bummer...but nice visuals nonetheless.
"The average human could die if left in sub-zero temperature sea water for just five minutes. However, Natalia is a yoga expert and used meditation techniques to hold her breath and stay under water for an incredible ten minutes and 40 seconds."
via the The Mail Online