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Let's find a suitable date.
Added 5 minutes ago
It's not stuffy there, Sasha. You're spreading misinformation! The train to Sochi is quite comfortable, especially the couchette cars. You've probably forgotten when you last traveled to Sochi by train. It's longer, yes, I agree, but it's more fun, without the stress of driving, you can relax and stretch your legs, without any transfers to and from the port (you get out in the city center and it's a short distance to the destination).
If you take a four-berth compartment, a triple adapter, and an extension cord, you can play some games on your laptop. And we're not even there yet, but the atmosphere is already heroic! No airport express trains, check-ins, or unnecessary queues.
IMHO: For one person, a plane is better, but if you're with company, the train is definitely more fun.
P.S.: I haven't decided yet whether I'll fly or take the train from Moscow, but I'll try to attend the tournament.