I play that every character with an ability to be safe in the forest or crags have a +1 in case he want to encounter this spaces, what do you think??

I don't see anything wrong with that. It's a pretty limited ability as is, and holy God does the Elf badly need a buff badly.

You could also consider a "rolls twice" ability for those spaces, like the Rogue gets in the Tavern, Village, and City.