Skip montserrat tourist crowds and take 45-minute train to sant sadurní d'anoia in penedès cava region. Where they produce world-class sparkling wine and tourists are completely oblivious.

R4 train from plaça catalunya around €5 each way every 30 minutes during peak hours. Codorníu or freixenet cellar tours €15-20 or bicycle tours through vineyards €45. Smaller family operations like can ràfols dels caus do incredible tastings for €12.

Pack lunch from barcelona or grab basic bocadillos at station because village restaurants are tourist traps. Wine quality rivals champagne at fraction of the price.