Kävelytunnelit Helsingin keskustassa

When weather is against us, it can be nice to use some of Helsinki's tunnels to walk from place to place. But it can be hard to navigate underground. So I made a map of some key underground and covered walkways in Helsinki city centre.

Naturally there are simplifications to keep the map readable. But I'd be happy to hear about any key things to add to or remove from the map. I assume I'll make another version...