On this map, there is a small cave system where the Red-Haired Goblins live. There are two entrances, one in the east and one from the north creature. If you don’t have a problem with wet feet, you can also enter the cave system through the river. There is even a small passage from a small pond in the west to the river. The Goblin tribe is not very large and, but they have protected their entrances with traps and obstacles. The chief, of course, has a special place, as he lives in a secret chamber in the center of the system.
Here is the way to the map.