It’s a long story but I ended up doing this trip (on my own)from Vladivostok to Moscow kind of by accident. Luckily, I had been living in Russia and spoke reasonable Russian. It turned out to be the most amazing 10 days of my life, a 24-hour party train trundling through the taiga!!
My tips for anyone considering doing this trip:-
1) Not for the faint-hearted but going third class (platzkartny) is a lot more fun and the atmosphere is much more relaxed and friendly.
2) Knowing some Russian (or having a phrasebook) is absolutely essential. You will be lucky to meet anyone who speaks English.
3) Don’t eat in the restaurant car. The food is lousy and expensive and it will mark you out as a tourist. Take bread, cheese, cold meats, sweets, chocolate and fruit. Make use of the station stops to stock up.
4) Share your food. It’s a great ice-breaker. Avoid offering junk food.
5) Russians are amazingly generous and the more you refuse an offer (of food, vodka, etc), the more they will persist. Polite but firm wins the day but do be adventurous. Russians adore whole dried, salted fish washed down with ‘pivo’(beer). You might say it’s an acquired taste but absolutely worth a try.
6) If you only make one stop, make it Lake Baikal and Irkutsk. Worth exploring.
7) It’s a bit of a cliche but do take your own toilet paper. Also, take plenty of wet wipes and tea bags. If you want to look like a local, take your slippers to wear on the train.