DISCLAIMER: If you're writing a fantasy novel. This will not take a day.I found that out the hard way.
Apparently making your own world for your fantasy novel is fun but not easy. Picking the mood was easy; the time period - I got this, but the geography...Lord help me. Between giving the world an origin, climate, physical geography that is adapted to the climate and a viable ecosystem, I've rediscovered my intense dislike for my geography teacher. Oh yes! and remember my world has four major continents each with their own territories within. I'm just dead. And there are rumors flying around that I may have to create a few languages of my own. What!
For tips on how to go about selecting your physical setting check Physical Setting of Your Story.
BTW: The story has grown so much it seems I may have not less than three protagonists. I say not less than because there's a character here who keeps on peeking over the hedge urging me to let her into the pen to play.