me and a friend are going on interrail in june / july for 6 weeks. We will visit the Netherlands, Belgium, Switzerland, Italy, Austria, the Czech Republic, Slovakia, Slovenia, Hungary and Croatia.
(more specifically; Amsterdam, Bruges, Bern, Como, Venice, Vienna, Prague, Bratislava, Budapest, Ljubljana and Split)
Should we book trains / hotels in advance; if so how long before? We would prefer to be able to book during the trip but we are skeptical about whether trains and hostels will be sold out as it is high season.
Does anyone have experience that trains have been sold out or will there always be available trains every day?