The cable car ticket for ascent and descent is valid for the whole Pizool. You can drive uphill from the Wangs valley station and downhill from Pardiel.
There is a free shuttle service from the Pizolbahnen between the two valley stations!
Tip: Combination Pizol with Tamina Gorge Bad Ragaz:
There are 4 bus platforms, which are well signposted. From here, for example, a bus line runs to the valley station of the Pizolbahn Bad Ragaz. It is therefore possible as a hiker (that's how we did it) to get in at the valley station in W a n g s and hike down from the "Pizolhütte" mountain station to Pardiel, and then take the cable car down to the Pizoo.Talstatuion B a d R a g a z. (Pizol ticket is valid for both mountain railways). Then take the post bus from the Pizo9lbahn valley station in Bad Ragaz to the Bad Ragaz bus station.
A little away from the 4 bus platforms already mentioned is the stop of the "Schluchtenbus" into the Taminaschlucht (single trip 6 SFR, H+RF 11 SFR, as of October 2022).
How do I get back to Wangs? Solution: There is a free shuttle minibus
from the valley station Pizol Bad Ragaz to the valley station in Wangs.
So you can combine a Pizol hike with the Tamina Gorge!