Productive Procrastination

As I was reading over some of my novella earlier, I discovered I had made some glaringly obvious mistakes. The first was that I had referred to the same body of water as a lake, a river and a pond (at one point, all within a few paragraphs). The second was that two towns that were five days' journey apart in an early chapter magically became only one day's journey apart in a later chapter. This brought me to the conclusion that I desperately need to draw a map.

I like maps, particularly in fantasy novels. We're being taken on a journey through a completely new world, so we need something to give us our bearings. And I think, as a writer, they can help the author avoid inconsistencies like the ones I've just mentioned. That being said, I'm sure we've all read fantasy novels where the first few pages are taken up by sprawling, world-encompassing maps, and where the characters in the story visit every single place on that map, seemingly for the sole purpose of... well, visiting every single place on the map. My map won't be like that. Though the world in which Dark and Silent Waters is set is vast, the events take place only within a small geographical area, so this area is the only section I will be drawing. I see no point in confusing the reader with details that add nothing to the narrative (I'm also too lazy to draw the rest of it if I don't absolutely have to, so it works out well for everyone).

UPDATE:
Many smudges, blunt greyleads and torn pages later, here is the map in all its completed glory:

Edit: The sea monster's name is Bruno.
(note: symbols used for legend were sourced from Obsidian Dawn)