This is the Isle of Skye. The island of the second part of AC's Crossover Stories. That was the first time that I got ownership on the terrain creation. That was stressful at some points but in the end I'm proud of the result! It is 8km by 8km. The big issue with this one was to create a world that has a lot of land passing over the map borders. The solution was simple though, we created a desync wall that enables the player to go beyond that ridge.
About 3 weeks of work.