Did you know that there are a lot of city hiking trails in Vienna? They are perfect for exploring the city, enjoying nature or doing some exercises. You can find a lot of useful information (what to bring, level of difficulty etc.) about each trail online. My maps give you an general overview about the trail and where each one is located in Vienna.
Hiking Trail 6 (Stadtwanderweg 6): Zugberg - Maurer Wald
Hiking Trail 7 (Stadtwanderweg 7): Laaer Berg