Lake District Coast Aquarium, Maryport

The tanks start right as you walk in - no faffing about. Lake District Coast Aquarium in Maryport is a modest operation, but it does the job well if you're staying at Harbour Side Caravan Park literally down the road or one of the other sites nearby. You'll see everything from local freshwater fish to seahorses, rays, and jellyfish. The place is built around what you'd actually find in the Irish Sea and the lakes themselves, so it feels relevant rather than just another generic box of exotic creatures.

The walk-through tanks are engaging enough for under-tens, though honestly, if your kids are aquarium veterans from bigger places, they might find it small. The interactive touch pools are where most families linger longest. You're looking at 45 minutes to an hour if you're not rushed, maybe two if you're the sort to read every label. It's particularly good on a grey afternoon when the beach isn't happening.

Worth the entry fee depends on your tolerance for smaller attractions - it's neither expensive nor world-changing. The location works though. You can walk straight back to your caravan at Harbour Side after, grab a cup of tea, and call it a morning. Better as a half-day activity alongside a walk around Maryport harbour than a destination in itself. Good if you're camping locally and need an indoor option. Skip it if you're just passing through.