[SBB] 8 minutes of life at Biaschina-Loops (two spirals tunnels)

Gotthard mountain railway. SBB Re 420 11200, IR 2319 Basel SBB - Locarno; SBB Re 420 11244, IR2324 Locarno - Basel SBB; FS ETR610 11, FS ETR610 03, EC14 Milano Centrale - Zürich HB; SBB Re 420 286, SBB Re 420 with a freight train.