Upvote:0
You could try the Puttgarden-Rödby-Route. The Autobahn from Berlin to there is for the most part quite good. The ferry goes hourly and, as the trip is not so far, it is cheaper.
Also you´ll drive trough Fehmarn, which is quite a nice island in the Baltic sea of it´s own.
Edit: You can get a quote for your trip here (both routes): https://www.scandlines.de/tickets-und-tarife/tickets-und-preise/rostock-gedser.aspx
Prices are for one vehicle <6meter length and up to 9 passengers.
Upvote:3
Let me say that I am not an experienced traveller on this route, however as far as I can tell you can get significant discounts to around €33 if you book early and join the SMILE customer loyalty program for free.
Additionally there is a route through Puttgarden -> Rodbyhavn which takes 17 minutes longer, however is around 30 euros cheaper if you book late. Same price if you book early though.
Upvote:5
€100 sounds reasonable for a vehicle and 3 passengers. It is a 1 hour 45 minute crossing.
Did you get your price from Scandlines ?