The meeting point is at the central statue of Túpac Amaru II in the Plaza Túpac Amaru. It is easily accessible by taxi from most of the city's hotels. Uber is available in Lima and is a convenient way to reach the meeting point.
The tour concludes at the Simón Bolívar Square. The tour duration is approximately 3.5 to 4 hours depending on the pace of the group. Your guide can help you to find transport back to your accommodation if you wish.