National Geographic Young Explorer and wildlife photographer Nansen Weber has been going to the same party for 16 years and it never gets old. Each summer for about a month, thousands of beluga whales congregate in Cunningham Inlet, a part of Canada’s Somerset Island. “Basically it’s just a big party, a socializing thing. There’s been speculations that the whales go there to molt their skin, to get rid of parasites, that it’s a nursery for the young whales, but … you can definitely see it on their face—they’re having a good time. They’re enjoying the warmer water of the Cunningham River, which can be 8 degrees Fahrenheit warmer than the ocean and that’s like a bathtub when you’re swimming in 1 degree Fahrenheit water all the time,” Weber says, describing the yearly scene.