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. Hotels usually could send you an invitation (voucher) for tourist visa, which is ok to attend an event.
To request authorization letter please contact your travel agency or hotel as soon as possible.
