We are planning on taking the Blue Star Ferry from Piraeus to Naxos on a Saturday morning. Our group includes 2 adults, 1 2-year old and 1 9-month old. We will have four pieces of large luggage, 2 strollers and a car seat. We were thinking of getting a cabin so that we have a place to store all of our luggage while we walked the ship (or could come back to rest). What are the differences in prices when it states "4 berth outside cabin with shower" but then lists 2 different prices? Has anyone taken the cabin route and can give some advice? Is it even worth it for a four-five hour journey with all our luggage?