You can use the form provided at ellennet. Go to Sailing abroad->Visa and letter of invitation from Russia. At the bottom of the page, the links to the forms open. Please observe that you, according to our latest information, must call Pionerskiy as your first port.

20080612:
The links to the invitation forms are now only shown after log in.

After login at the start page, proceed to the sailing abroad->visa and letter of invitation to Russia.

You will find the links to the form in the sub menu.