500.016 slithered round the reverse curves at Varenzo, between Ambri-Piotta and Rodi-Fiesso, with ICN 671, the 11:04 Basel SBB to Lugano express, on 11 August 2016.
ICN and EC services don’t serve any stations on the mountain section of the Gotthard, running non-stop from Arth-Goldau to Bellinzona in just over 90 minutes.