- "Looks like we found another one, bud."
- ―Hiccup to Toothless, after a crash-landing[src]
This autumn-hued fjord represented the farthest east Hiccup and Toothless traveled on their world-mapping adventures before smoke trails led them to Eret’s devastated fort and, ultimately, to Valka and Drago’s war over dragons.
- ""So, what should we name it?" (Toothless scratches his armpit) "Itchy Armpit, it is."
Hiccup and Toothless first encounter this new area after a crash landing. Hiccup makes a drawing of it on his map. Upon asking Toothless what they should name it, Toothless proceeds to scratch his armpit, leading Hiccup to name the area "Itchy Armpit." It is where Astrid, riding on Stormfly, eventually catches up with him while searching for him.
While flying over Itchy Armpit, they discover a big part of the forest had been destroyed, and so was a fortress, covered in gigantic ice crystals. This leads them to meeting Eret and his band of Dragon Trappers.
According to Dragons: Rise of Berk, Itchy Armpit once had many dragons, but they were mostly picked off by Dragon Hunters. Shivertooths, Thunderpedes, and Sliquifiers were some of the few dragons that successfully evaded them.
From what has been seen of Itchy Armpit, one can conclude its a beautiful forest area, with hills and mountains. There is also a thick mist in many areas.
Local Dragon Species
Though no dragons have been seen, Hiccup suspected there might be Timberjacks, Whispering Deaths and perhaps even a Night Fury might be living in the forests, though the latter was probably to cheer up Toothless. Though no dragons have been seen, one can conclude there used to be many of them, seeing how Eret and his band made their base here. However, according to the Rise of Berk app, Shivertooths, Thunderpedes, Sliquifiers live there as well. Hiccup's map shows a dragon called an unknown dragon called a Bighound is known to live on Itchy Armpit as well.
The only known humans that lived in this region were Eret and his gang of dragon trappers. Seeing how they made their base here, one can conclude Itchy Armpit is a habitat for many dragon species, which is confirmed as they captured quite a lot of them. However, after the Bewilderbeast destroyed the fortress and freed their dragons, they were forced to leave in order to find more dragons for Drago Bludvist's dragon army.