TOURS @
OPENLY
Visit the largest "hemp house" in Europe in Widnau SG.
See, touch, marvel, learn.
Free Valley Widnau guided tours every last Thursday of the month
Thu, March 26, 2026, 5:30 p.m.
Duration of tour: approx. 60 minutes plus discussion and exchange
Address: Büchelstrasse 5, 9443 Widnau
Parking: In front of the building or in the underground car park, spaces 10, 11, 21
Registration is requested.
Dates for individual tours on request.
Over 1,478 people have already visited Openly!
OPENLY day training: in the lab in Widnau, SG, we share our knowledge of bionic construction for the greatest possible climate impact
Meeting room: hold your board meeting or strategy workshop in Openly Valley Widnau
Spend the night in our Green Studio, the business accommodation in Europe's largest hemp house
OPENLY on your ears: In an unedited conversation with Peter Richner (Deputy Head of the Swiss Federal Laboratories for Materials Science and Technology), Andy Keel talks about avoiding CO2 in the construction process, Swiss SIA standards, grandchildren's suitability and what the floppy disk has to do with carbon capturing.
🎙️Spotify: The CO2-neutral house