Grüntenlifte – Kranzegg (Rettenberg) (temporarily closed) is a ski resort in germany europe. Grüntenlifte – Kranzegg (Rettenberg) (temporarily closed) is rated 2 stars in germany europe. The resort of Grüntenlifte – Kranzegg (Rettenberg) (temporarily closed) has 8 ski lifts which are a total of 16.8km. It sits at an altitude of 800 meters.