With the admission ticket on all buses, trams & trains (DB: RE, RB and S-Bahn, each 2nd class) in the VRR Rhine-Ruhr fare zone. Valid on 30 April and 1 May 2018. Information at www.vrr.de and www.bus-und-bahn.de. An overview of the VRR area is available here.
The Print@Home-ticket entitles to direct entrance and to purchase a readmission wristband.