The meeting point is outside the front of the Teatro 8 de Octubre in Cancun's Downtown. It's best reached via taxi if travelling from the Hotel Zone.
The tour concludes at the Parque De Las Palapas to the bus stop and taxi rank with options for transport to return to the Hotel Zone. It's also within walkable distance of the centre of Cancun's Downtown if you wish to continue to exploring or your hotel is in the Downtown area.