Difficult Terrain
The travel speeds given in the Travel Pace table assume relatively simple terrain: roads, open plains, or clear dungeon corridors. But adventurers often face dense forests, deep swamps, rubble-filled ruins, steep mountains, and ice-covered ground—all considered difficult terrain.
You move at half speed in difficult terrain— moving 1 foot in difficult terrain costs 2 feet of speed—so you can cover only half the normal distance in a minute, an hour, or a day.
Questo significa che se il mio pg si muove solitamente di 9mt in un turno, dentro la vegetazione può muoversi di 4,5mt, non 1,5mt