So me and some friends are currently planning a trip through Europe. Nothing is really set in stone yet, our first question is if we want to do a roadtrip with a camper-van or an Interrail trip.
I guess the advantage of a train would be, that it would be a lot more enjoyable to cover larger distances than with a camper. I thought, maybe it would be really cool, if we did like a larger tour through Europe, so I researched a bit and planned a hypothetical trip through Germany (where we live) to Denmark, Sweden, Finland, Estonia, Latvia, Lithuania, Poland and back to Germany.
That sounds like a lot, but with the train routes, I looked up it would be doable with only 9 travel days, 4 of which would take the whole day (10-12 hours) and 5 of which would only take half a day (4-6 hours). I thought, that could be quite reasonable and it would be a great adventure type trip.
Do you think that could be cool, or would it get exhausting to quick?
21 days is 504 hours. Assuming light sleep (6 hours), that's 378 waking hours. Your proposal includes (pessimistically) 78 hours on a train, which is ~1 of every 5 hours of your trip. It gets closer to 1/4 if you account for 8 hours/night.
All that to say... you better have some things in mind to entertain you on the trains, because that's a huge chunk of your trip.
Train at night -> sleep
Yes and, make sure you really like everyone in your group, going to be tight quarters for a loooooooong time.