Saint Mary's Church

The church sits quietly on the edge of March, a solid medieval structure that catches you off guard with its sheer scale. Inside, the soaring nave and intricate roof timberwork remind you this was built when people had time - and faith - to do things properly. The craftsmanship is what gets you: carved roof bosses, decent stained glass, stone work that's survived centuries of Cambridgeshire weather.

It's the sort of place that appeals to architecture buffs and anyone interested in how ordinary medieval towns invested in their churches. You won't need more than thirty to forty minutes unless you're sketching every detail, though if you're the sort who reads every brass plaque, add another twenty minutes. History enthusiasts will spot the layers - different periods tacked on, repaired, adapted.

If you're based at Knightsbridge Caravan and Marina Park, it's a straightforward drive into March. The town itself is functional rather than thrilling, but the church is worth an hour of your time on a wet afternoon or between other activities. Free to enter, as these places usually are, though a donation box sits by the door. Check locally for opening times before you visit - country churches can be temperamental about access, particularly outside tourist season. The Fens aren't dramatic landscape, but they reward slow exploration, and a proper look round a church like this beats another round of amusement arcades.