Slitherwing Island

Slitherwing Island was the home of the Slitherwings.

Description
"A viper pit of no return, Slitherwing Island has no other inhabitants —they’ve already been hunted to extinction! Although seemingly peaceful on its surface, Slitherwing Island is actually home to a vast, coiling nest of the venomous dragons. The Slitherwings have tunneled dens throughout the island and strike at any travelers unfortunate enough to arrive upon their shores. Alluringly tropical yet appallingly toxic, Slitherwing Island is a place best viewed from a distance."

- Hiccup's map

Season 5
The island was one chose for a new home for the Death Song, Garffiljorg by the Dragon Riders of Berk. However, the Slitherwings attacked and captured Garff.