Owl Tower

The tower stands alone on the horizon, a squat brick structure that looks more industrial than romantic - which is precisely why it's worth seeking out near Boston. Built in the 19th century as a dovecote, it later became known for the owls that roosted in its upper reaches, and the name stuck. The climb to the top is tight and steep, so don't attempt it in a mood or with anyone prone to vertigo, but the views across the Lincolnshire fens are genuinely worth the effort. On a clear day you can pick out distant church spires and the flat agricultural landscape rolls on forever in that compelling, slightly eerie way that only proper fen country manages.

It's not a destination that demands hours of your time. Twenty minutes, maybe half an hour if you're the type who likes to sit and stare. That said, if you're staying at Orchard Holiday Park or Appletree Holiday Park - both are within easy reach - it makes a decent leg-stretch on a walk, or a brief stop if you're exploring the wider area. The tower itself is appealingly modest. No gift shop, no interpretive panels trying to wring drama from history. Just a brick tower where owls once hunted.

Families with younger children might find it underwhelming unless they're genuinely keen on birds or local history. Walking enthusiasts and photographers will probably make the pilgrimage. The surrounding fens offer proper walking territory, so combine it with a longer ramble if you've got the time. Winter visits feel particularly atmospheric, though access can be muddy.