Magma Volcano

This is a gigantic, dormant volcano. In fact, it's so huge you can't get around it, and it's blocking the way to the next route! Solution? There are two. First, you could walk through the empty cave-like insides of the volcano and out the other side, being attacked by fire-types all the way. As unpleasant as it might sound to you, the second choice is to climb it! No need for climbing equipment, the outside of the volcano has eroded enough to almost be considered a staircse of sorts. Of course, there are still wild pokemon here. Though this might seem easier, almost every trainer to take that path never came back, and those who did quit training and started babbling about a 'monster of fire' instead. Well, you decide.