Direct answer
Signposts allow for Fast Travel between distant locations. To Fast Travel to a location, you must first visit it normally. Only then will a Fast Travel marker appear on the map for that location.
Result
Signposts allow for Fast Travel between distant locations. To Fast Travel to a location, you must first visit it normally. Only then will a Fast Travel marker appear on the map for that location.
Game homeThe Witcher 3: Wild Hunt RemasteredAll games