Here are Destinations you can go to using the SGR Train
The SGR covers a couple of destinations between the Nairobi and Mombasa terminus such as Voi, Mariakani, Maiseny, Mtito Andei, Kibwezi, Emali
There are two daily departures that is the morning and afternoon train from Nairobi to Mombasa and from Mombasa to Nairobi Terminuses. The morning train departs from Nairobi at 8:20am and arrives Mombasa at 2:18pm whereas the afternoon train departs Nairobi at 2:35pm and arrives Mombasa at 7:18pm.
Your original ID and physical ticket are required at the gate for checking in. Other alternatives to use are; Passports, waiting card (lost ID), etc
When going on a Safari by rail (http://safaribyrail.com/), the morning train is the recommended means as it allows stop overs between in the various stations between Nairobi and Mombasa. The afternoon train is an express train that makes only one stop at the finally destination (Nairobi to Mombasa or Mombasa to Nairobi).