We don't exactly know how large the world is however PM said it's about 12 times bigger than Fable's world. Fable II uses regions think WoW (with loading between each), these regions are free roamable and quite large with many dungeons to be found underneath. We can swim, jump over fences, jump off cliffs and run around anywhere (what you see is where you can go unlike the original Fable). The world also has dynamic weather, day/night cycles and even seasons.
No more following paths in Fable II
This is but a glimpse of one of the many regions in Fable II. You can travel anywhere you can see in this screen, even swim in that lake or jump off those cliffs.
