This is Berk

For centuries the Vikings of the island of Berk have had a bitter rivalry with dragons. In Berk, killing a dragon means everything. You're not a true Viking until you've brought down one of those mighty beasts. But that is all about to change thanks to the island's runt, the chief's son, Hiccup, and his younger sister, Riga.
Prepare yourselves. There's a storm coming