Desperate: need to figure out what this song is!

Hello Loyal Followers!

This is a cry for help! Jenn and I have been watching the Nat Geo Adventure channel a lot recently. They make their own commercial promoting the shows that they play. Of course, they play mine and Jenn's favourite, Departures. There is a commercial with a beautiful song as the music. We cannot for the life us find this song, or event the commercial online. If you can find the song, that would be awesome!

Here are the lyrics:
"today we walked, in melting snow"
"stayed (hid) inside making fire and tea"
"when I met you, I was wondering (wandering)"
"(have) you seen many worlds since then"

() means it could be that word instead