I’m been travelling from Switzerland to Barcelona with Interrail. The place where we stayed is about an hour from Barca with the Rodalies de Catalunya which ist operated by Renfe and therefore should be included in the Interrail Global Pass. In Barcelona Sants they let us pass when we showed the Interrail ticket. But in the small station we left the train, they did not know Interrail and would not let us out (you need a Tickets to put in the machine or a badge). I plan another trip to the same place and now I’m having a 1 month pass. So it would be ok to use the Interrail pass every other day for the short travel to Barcelona and back. What would you suggest to do?