It's pretty standard exploration until you get to the wooden passages. At that point, if you poke your head in to see what's there, you'll usually end up pulling something.

The wooden hallway stretches to the left, down a slope to a platform, then rounds a hard corner, goes up a hill, turns left and into the boss's camp. This entire length of passage is patrolled by a single goblin. If you kill this goblin early, he will likely repop while you're inside the boss's camp and cause extra trouble.

At the entrance to the hallway, you can see a goblin standing on a platform on the other side of the fence. To the right are two more goblins on the other side. If you agro the left goblin, usually the other two will come as well, hopping over the platform to engage your party. If a higher level member pulls the left goblin, sometimes he comes alone, but expect the other two to agro a lower level when you all enter the hallway.

Down the slope and on the first platform I mentioned are two archer goblins. This platform makes an easy exit from the area, since you can step on to it and hop over the fence to the bridge you crossed to get here.

Around the passage at the platform and up the slope are two goblins at the corner.

Just inside the entrance to the boss's camp are two more goblins. The left one patrols a very short distance, so he may agro the moment you peek inside if he's very close.

Finally, in the distance to the left, you'll see the boss and two more goblins at a distant tent. To your right, you'll see more goblins inside a stone structure, but they won't come after you unless the roamer repops and agroes your group while he is close to them. A very low level could agro them if they get too close as well.

As always, if you stay in one place too long (such as clearing the 2 goblins at the corner and the 2 goblins just inside the camp, then pulling the boss and his 2 guards to the same place), expect repops to add to your fights if you are working slowly.