All foreign nationals are required to have entry visas to travel to the Russian Federation. Russian entry visas can be obtained at local Russian Embassy or Consulate, proper authorization (invitation) from the Passport and Visa Department (UVIR) of the Ministry of Internal Affairs or specially authorized travel agencies is required. More on Russian visa requirements.
Please familiarize with procedure of issuing and extending Russian visas at a site http://visalink-russia.com/procedure-issuing-and-extending-russian-visas.html.
Attention! On arrival you should follow the Russian migration legislation. Please familiarize with procedure of Migration registration of foreign citizens in the Russian Federation at a site http://visalink-russia.com/migration-registration-foreign-citizens-russian-federation.html.
We recommend making visas with leeway.