ISS Flowthrough Lagoon Aeration System

An industrial water treatment plant might not sound like your idea of a day out, but Norfolk's ISS Flowthrough Lagoon Aeration System near Attleborough is genuinely worth a look if you're into how things actually work. It's a proper engineering marvel - essentially a series of lagoons designed to treat wastewater through natural aeration, which sounds dull until you realise you're watching a sophisticated system that keeps thousands of people's sewage from polluting the Norfolk rivers.

The site itself is open to view, though access arrangements aren't always straightforward - ring ahead or check locally in Attleborough before you visit. What you'll see is the mathematical precision of the lagoon layout and, if conditions are right, the water movement that powers the whole operation. It's more of a technical interest than a recreational attraction, so this is really for engineering enthusiasts, school groups studying water treatment, or anyone genuinely curious about infrastructure.

Allow an hour at most, and go when you've got time to chat to staff - they're usually keen to explain what's happening. The surrounding Norfolk landscape is far more picturesque than the lagoons themselves, so pair this with a stay at Wild With Nature or Glamp & Tipple, both within easy reach. Neither will be disappointing if your main holiday focus is exploring the Broads and countryside, though you'll want proper attractions mixed in with a visit here.