The document discusses designing an audio walk with no interface. It provides examples of past audio walks that used various interfaces and draws attention away from the environment. The proposed "no interface" audio walk would attach audio narratives directly to locations of historical significance using permanent physical pointers at each site. A prototype was created where sound, music and narratives were played when visitors stood near red signs installed at specific outdoor spots in Copenhagen that were part of the BZ anarchist movement. Testing showed this "no interface" design allowed visitors to focus their full attention on taking in the sites and stories.