Not every scene is mud and moss. For the city-based chaos, the team used a multi-story car park in Cardiff that was due for demolition. You know, the kind where the concrete is peeling, and there’s a weird smell of damp cardboard and lost hope? Perfect for a flood drama. They actually flooded the ground floor with about three feet of water—then added a few floating shopping trolleys for realism.
And here’s the cheeky bit: the show’s production designer told me (well, not me personally, but a podcast I listened to) that they chose the car park because it "already looked like someone had cried all over it." I mean, the honesty is refreshing, isn’t it?
The "Not-So-Secret" Canal
Remember that episode where the protagonist stumbles through a flooded canal basin that looks like a forgotten postcard from 1985? That’s the Neath Canal, just outside Swansea. The water there is naturally murky, which saved the effects team a lot of time. They just added a few floating plastic crates and a dead pigeon. The pigeon was fake, by the way. Probably. The crew also built a temporary dam to control the water level—because, as any location scout will tell you, "wild flooding" is not as fun as it sounds.
After the Flood Filming Locations (TV Series 2026-)
