From Montparnasse station, take metro line 4 (in the direction of Porte de Clignancourt) to Gare du Nord then change to line 5 (in the direction of Bobigny - Pablo Picasso) and get off at Porte de Pantin. Allow about 45/50 minutes for the journey.
From Montparnasse station by taxi:
A taxi journey from Montparnasse station to the Zénith will take at least 50 minutes, depending on the density of traffic and the difficulty of access around Parc de la Villette.
