8 Days Travel in Switzerland

Hi :

We are 2 families with 4 adults and 4 children (all < 16 years old). We are planning to stay in Switzerland for whole 8 days in July. Just wondering to buy 8 days Swiss Pass or Half-Fare Pass, but I’m confused there are so many combinations (Swiss Pass, Swiss Saver Pass, Mountain Pass, …). Our trip plan as the following :

Day 1 : Landed at Zurich, go to Luzern for the Pilatus Golden round trip and Luzern city tour. Then go to Bern and stay for the 2 days.

Day 2 : Bern city tour around old town and river, Rosengarten, bear land …

Day 3 : Go to Zermatt and have the tour to Gornergrat, then have hiking from Rotenboden to Riffelberg. Stay in Zermatt hotel.

Day 4 : Go to Trockener and back to Furi, have hiking from Furi back to Zermatt. Stay at Zermatt.

Day 5-6 : Go to Interlaken and bound for Jungfrau area including Grindelwald/ Jungfrau/ Wegen/ Murren/ Klein Scheidegg and some hiking around (roughly, not very precisely). Stay at Interlaken.

Day 7 : Go back to Zurich for some shopping and city tour. Stay at Zurich hotel. (Maybe another lake tour around.)

Day 8 : Another city tour, and take the late plane back.

My question is : Which way is the best suitable for our trip ? (Swiss Pass or Half-Fare Pass)

(I know the children can benefit from Swiss Family Card, but how about the Pilatus Golden round trip ?

and Jungfrau ? Do we need to buy tell-pass or something like that ?) Any comment or suggestion is welcome.

(I know I can have a calculation but time is tight for me and uncertain about the combination of passes.)

Thanks !

Martin