The sound of the hammer fixing another couple of planks together seems to echo of the palisade walls as the group makes ready to cross the moat.
*bang* *bang* *whinny**bang*
Wait what was that? Suddenly from the forest comes the sight of seven men on horseback, they are galloping up the same trail you took from the High Road. They are moving fast and will be at the gates in a matter of moments. The gates your company left wide open with the drawbridge still lowered.
One round worth of actions and then they will be inside the village. The "plank bridge" needs but one more piece to fit across the gap like a balance beam sort of path.
INFO: the group is 210 feet or so from the front gates. The perception check was for the group challenge not a specific perception check, but here is a good view of the bridge area. And from what I can tell from the adventure you could climb around the wall here, and move down into the water without to much trouble.
Ooc: There was a larger side view posted when we 1st got to town. That's why I went for the planks. Ive watched enough Ninja warrior to know am uphill jump is near impossible for (what I think) is that distance and elevation.