The lift passes are expensive, especially as a tourist. But the riding is phenomenal. There is one proper DH course which was supposed to be used for the European championships this year until the event got cancelled, but there is a whole host of natural trails to be ridden there.
It’s not somewhere to ride with reckless abandon as you can come around a corner on the natural trails and see a group of hikers standing like a rabbit in headlights but you’ll be hard pushed to find a more stunning backdrop for a bike ride.
There are trail possibilities to ride from 3100m down to about 1400m, lower if you don’t mind a bit of effort.
There are also a load of other areas with lift access within easy access on the Swiss railway network.
The trails are a bit like this one.