Most models its 1 ladder all the way up. There are rest spots along the way... but there you are tied off to the ladder starting to climb and looking up you can't see where you are climbing to because it is narrower at the top and hidden in perspective. 80 to 100 meters long climb. Once you get to the top then your work starts. Hahaha. The weirdest feeling is if you need to work at the back of the nacelle off of the steel structure and stand on the fiber glass panels... there's really only the thickness of the panel between you and the ground. Even though these things are engineered to the nines... its still a weird feeling.