Czech Republic - BT and Scott Genius solving a trail puzzle at Rychleby Trails in Czech Republic

This may not look like much through the camera lens, but the entry into this section is a blind thread the needle down the pointed nose of the rock, before linking together the rest of the narrow stone path. What the two guys at the end are saying to each in Polish: Mosna? Mosna... Which basically means: Possible? Possible... Or: Doable? Doable...