All attempts to found a city on Cuba's south coast failed. However, an early map of Cuba drawn in places the town at the mouth of this river. The town that became Havana finally originated adjacent to what was then called Puerto de Carenas literally, " Careening Bay" , in The quality of this natural bay, which now hosts Havana's harbor, warranted this change of location.
Your insistence on ignorance is befuddling. A denser forest with a dry leaf bed from years of trees shedding their leaves will obviously burn faster. Especially when many of the trees are dead wood. One only needs a little common sense to understand that.