Cemetery Tour of Bruges.
It really is a shame more people don't make it out here. Its about a 20 minute walk from the Market Square and a really lovely break from the stressful tourist trap that is that part of town. We didn't really see a single other person on our walk out to or during our time in the cemetery. Bliss.
Its a bit of a walk but well worth it. Considering how well kept it is and how informative some of the signs in the War Memorial section were I am really very surprised that it isn't on any of the 'to do in Bruges' lists, especially considering the list of things to actually do in Bruges runs out after a day or two.
100% my #1 Bruges pro-tip.
More info HERE