Yes, I see.
Thank you for your reply.
Our schedule is as follows.
Day1. Venice Santa Lucia → Milan Centrale → [Spiez → INTERLAKEN OST]
- trenitalia / [super saver ticket] / In Spiez, children are issued a junior karte
Day2. INTERLAKEN OST → Jungfraujoch → INTERLAKEN OST
- adult : Jungfrau VIP Pass / junior : junior karte
Day3. [INTERLAKEN OST → basel sbb] → paris
- adult : [super saver ticket] / junior : junior karte
I am planning to proceed with the above schedule, but when I compared the cost up to the Jungfraujoch schedule, I thought the super saver ticket would be the best.
I will refer to the half-price card information you provided to confirm the amount. Thank you.