30 Dec 2023
IDM 2023 took us to the beautiful city of Barcelona for a long weekend of Lemoncelo, tapas and big drains. Here's a selection of the underground stuff.
A casual stroll around a huge tank:
Small gathering in a storm drain....
![IDM 2023](https://live.staticflickr.com/65535/53430160832_bb87fba7ba_b.jpg)
Offical tour access to the sewers in the middle of the city, we did try but a worker was standing right next to it.
![IDM 2023](https://live.staticflickr.com/65535/53431513965_1a91b6f843_b.jpg)
Various low outfalls could be found along the River Besòs, overflows for a sewer that ran alongside.
One of the bigger tunnels which was another CSO, we could hear the main chamber but sadly needed waders to get past a flooded section. Kicked myself for bringing waders across Europe then leaving them at the hotel, next time.