The skavid map is required to successfully navigate the Skavid caves around Gu'Tanoth. It shows the location of the entrances of the Skavid caves when read. Without possession of this map, players entering into one of the Skavid caves will immediately exit the next cave entrance in a clockwise direction, the last one being next to Tobans island, before starting at the north-west cave again. Players do not need to read the map to enter the Skavid caves, only have it in their inventory.
During the Watchtower quest, the map is obtained by visiting the ogre City Guards located on the last bridge near the highlighted box. A Rock cake from the Gu'Tanoth market stall is needed to bribe a guard, 20 coins to pay a guard to let you jump over a bridge, and a Death rune to give to a guard to get the map. After the quest, if the map is lost it can be retrieved from the same guard, after the bridges, for free.