Johanna Brebner and Aiyana Powell know how to find adventure. And they find plenty of it in Iceland. They definitely surf the big right-hander you’ve seen in plenty of Icelandic cuts. But the two also find out-of-the-way spots by tromping through the snow. Filmed by Ishka Folkwell, On Top of the World follows a pair of intrepid surfers as they search for the very thing every surfer is looking for: pure emptiness.