This music is a film score from movie called ”Surf’s Up” and the Composer of this track is Mychael Dama.
You can also buy this track from iTunes:
https://itunes.apple.com/gb/album/surfs-up-original-motion-picture/id273173210
Composer: Mychael Dama
Title: Legend
Film Score of: Surf’s Up
WACOCA: People, Life, Style.