A unique beautiful and perfectly organized large steam locomotive tour from Zurich around the Säntis mountain of "Steam Adventure Tours". With triple traction of Eb 3/5 # 5819, A 3/5 # 705 and B 3/4 # 1367 (all of SBB Historic and based in Brugg), the 12 car train crosses the highest railway viaduct in Switzerland (99 meter height), the Sitter viaduct of the former Bodensee-Toggenburg-Bahn, today Südostbahn (SOB), between St.Gallen Haggen and Gübsensee.
