Huttoft Bank Pit

Huttoft Bank Pit is one of those geological curiosities that makes you stop and think about what the landscape has seen. This Lincolnshire landmark exposes layers of sediment and rock that tell the story of ancient seas and ice ages - the kind of thing that fascinates geology enthusiasts and keeps kids asking questions for far longer than you'd expect.

It's not a manicured attraction with visitor facilities or gift shops. What you get is the raw thing itself - a working pit where you can actually see the strata clearly, which beats most textbook photos hands down. Walkers and amateur geologists will find it worthwhile; families with curious children too. The site sits just outside Sutton on Sea, so it's easy to slot into a caravan holiday without much faffing about.

Timing-wise, an hour is enough to have a proper look unless you're really into the geological detail. There's no charge for visiting, and no set opening hours to worry about - you turn up when suits you. The surrounding area has plenty of touring parks within spitting distance: Cherry Tree Springs is barely a mile away, and Sutton-on-Sea Caravan and Motorhome Club Campsite is just a touch further. Lakeside Springs and Creekside Family Camping at Anderby offer more variety if you want options.

Honestly, if you're already staying in the area with a caravan, this is well worth the detour. It's free, it doesn't demand hours of your time, and it's actually more interesting than you'd think. Weather matters though - go when it's not pouring, or the pit becomes less revealing than it should be.