>There is another circular hiking route around Bergisel, which is close by and not long. A nice walk, especially when you have to leave the house or go mad from the noise of jackhammers.

Blue-green, crystal clear, icy water. Beautiful, but the paths are narrow and slippery in the snow, and the place tried to kill me several times by nearly sending me down into the stream. My other route is more welcoming.
The back end of the Bergisel ski jump/cafe.
A memorial for Father Franz Reinisch, an Austrian priest who was executed by the Nazis in 1942 for refusing to join the Wehrmacht on conscientious grounds. He had spent his youth and student years in Innsbruck.