We will be all staying in Castelldefels, closer to the venue and where we live :) It's 30 minutes by train to Barcelona city center. Easy to get. Here are the suggestions for hotels in the area, that are not too expensive: Hotel Playafels - Grup Soteras Las Palmeras Solifemal Apart hotels Apartamentos Turísticos Royal Marina Gardens Aparthotels Las Palmeras Masd Mediterraneo Hotel Apartamentos Spa