Tyr Island is a location briefly mentioned on Hiccup's Map.
According to the drawing on Hiccup's map, this island has a single hill or mountain on its western shore, but there is no indication of any water sources or vegetation.
Tyr Island does appear on the Interactive Map on the Dragons: Race To the Edge website. The island thus far is not featured in this TV series, however, nor has any sort of description.
- Tyr is the one-handed God of law and heroism in German and Norse Mythology.