One of the coolest things to do in Hamburg, the Old Elbe Tunnel allows you to walk under the river. Which doesn’t sound all that thrilling, but seeing as this tunnel was an architectural wonder when it opened in 1911 and the walls are lined with beautiful ceramics sporting nautical themes, it’s a great free activity. Unfortunately the other side is not interesting, but there are some good views back to the main part of Hamburg. You’ll also get an up-close look at the tunnel’s inner workings. The tunnel is about 420 meters long and you are about 24 meters underground.
IF YOU LIKE TO WALK STRAIGHT, COME HERE!HAHAHA.. it's really just a tunnel, but still if you consider you see a part of Hamburg's history going all the way down and crossing the river underground. It's cool.COME AND HAVE FUN. If you're drunk, I think it's more fun (straight walking) hahaOHHH and it's for FREEEEEEE :D
Hamburg's underground... literally. It's a fun walk under the Elb river.
Seriously one of my favorite spots we saw!