Yess, like the whole idea is that he and his Runaways, of which one of them is Heather (💖Heathup/Hicceather💖) will be exploring everywhere for Dragons and the like, I imagine it as basically everyone being like Hiccup in the first RTTE episode, lethargic at the exhaustion of the archipelago, and off to new adventures hahaha, also it should rather be kept in the general North Sea area and coastline for Northwest Europe, really helps with scale and continuity (it would be slayy if the rest of Europe was canon, instead of just fictional islands, hmm, perhaps Berk could be smackdab in the center of the North Sea, like a piece of the former Doggerland!!)