The world map is moderately sized and is loaded with lots of side content with a central hub, where you can travel between the different Nordic realms. (ticgn.com)
The game is also rich with side content and activities. (metacritic.com)
In addition to this, GI says that it took them a total of four hours to play through all of the game's side content along with the story mode. (gimmegimmegames.com)