Hello everyone,

Since I am new to Interrail, I have a question. I am planning to buy an Interrail Switzerland Pass, but I am not sure if the ride from Zurich to Lugano is 100% covered by the pass or I will have to pay something extra. I am asking this because based on this map,

part of the line (namely from Erstfeld to Biasca as well as from Cadenazzo to Lugano) is marked with dotted line, which means that this line is covered, but with reductions.

Thanks in advance!