Hygiene is one of the strongest measures we can undertake to reduce the risk of transmission and make stakeholders feel comfortable coming to our facilities. (9,10) By definition, hygiene is about our behavior, practices, and attitudes. The personal choices our individual climbers make are the first line of defense when it comes to reducing the risk present in our facilities. Therefore, communication is especially critical. Your local authorities may have specific guidance to follow, but at a minimum consider the following principles.