Rochester Castle

The fortress rises from the Medway riverbank like something out of a medieval fever dream - all Norman keep and crumbling stone walls that actually make you feel small. Rochester Castle isn't just standing there either; it's properly imposing, the sort of place that makes you understand why people built castles in the first place rather than just reading about it in textbooks.

You're looking at the real thing here. The keep itself - that's the main tower - is one of the tallest and best-preserved in England, which means the climb up the spiral staircase is both knackering and absolutely worth it for the views across the Medway Valley. The fortress dates back to 1087, and unlike some heritage sites that feel sterile, this one still has grit and character.

Walkers and history buffs will get the most from this. Kids work in short bursts - the climb takes maybe twenty minutes, and once you've examined the arrow slits and wandered the ramparts, an hour covers most of it properly. The riverside setting adds something; it's not just a lump of old stone in a car park.

It sits well within a Kent park holiday, especially if you're based at Kits Coty Glamping just up the road near Aylesford. Combine it with a wander through Rochester town itself - the High Street has actual character, and the cathedral's worth ten minutes. Budget the best part of a morning here rather than an afternoon dash. Worth the detour on a proper day out.