Hello everyone, is it normal that I don't need a reservation for this ferry? I thought all ferries required a reservation. Also does anyone know this company? Will I get an inside cabin to sleep in? Will there be a window? Will I share the cabin with anyone?
Thanks guys for your answers!
Hi, you will need a reservation for the ferry. You can either take the Tallink Silja ferry or the Viking lines ferry for the route Stockholm Tegelvikshamnen to Turku Satama. Cheers 
What you get depends on what you book on their website. https://www.interrail.eu/en/plan-your-trip/trains-europe/ferries/viking-line-ferries
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