We initially found Robb as a highly recommended guide through TripAdvisor as we were looking for someone to take our family of 4 through La Sagrada Familia and wanted to experience the Park Guell. He recommended electric bikes which were a fabulous way to mix sightseeing with a bit of adventure as we (easily) cycled our way through the city and up the huge hill to the park, while keeping our teens engaged, safe and on the move. He was patient, enthusiastic and very knowledgeable and was very flexible as we had already explored other parts of Barcelona and were specific about what we wanted to see on our last day. We got to skip the lines, and get the most out of a beautiful 4 hours in Barcelona. Great grand finale for family! Thanks Robb!