Montserrat mountain and monastery near Barcelona. Day Tours to Montserrat. Montserrat is a spectacular mountain where you visit the 1000 year old monastery, a basilica church and the sacred shrine of the famous and sacred black virgin Lady of Montserrat. Montserrat is just under 1 hour from Barcelona by train, car or tour, Montserrat is a world class visitors attraction and a UNESCO World Heritage site. Montserrat can be visited on a half-day tour from 4 to 7 hours. There are many companies that offer day tours to Montserrat.