Solar System Model: Neptune

Walking around Otford's Solar System Model is genuinely odd in the best way. Someone's actually built scale representations of all eight planets scattered across the village, and you navigate between them like you're on a peculiar pilgrimage across the cosmos. Neptune - the final stop - is properly tiny compared to Jupiter, which hammers home just how absurdly vast space actually is.

It's free, which helps. You won't need more than an hour unless you're the type who reads every single information board, and honestly, the appeal lies in the strangeness of it all rather than deep astronomical education. Kids find it entertaining because they get to wander between stations and tick off each planet; adults appreciate the sheer audacity of the project. The walk between each planet does rack up the miles, so comfortable shoes matter.

Timing-wise, spring and autumn are best - you won't overheat trudging between distant models in July, and the light's better for photos. Sevenoaks sits just north, so it works as a break from town exploring. If you're staying at Thriftwood Country Park nearby, this fills a restless afternoon nicely. It's not essential, but it's the sort of thing that sticks with you - the village that measured infinity and lost perspective entirely, in the loveliest possible way.