Tarragona and Sitges Small Group Day Trip from Barcelona. Escape Barcelona to Sitges and Tarragona on this 10.5-hour, small-group, day trip stopping for some fun in the sun and an exploration of the area’s Roman history. Start your trip in Tarragona, the former Roman capital, where you’ll admire its intricate aqueduct and explore the city’s historic architecture and markets. Then head to the beach at Sitges, a hip coastal town that boasts a gorgeous beach, trendy cafes and interesting boutiques. This small-group visit to Tarragona and Sitges, limited to just 15 guests, also includes a guide and transport by minivan. Book thsi Tour and Save 15%: Tarragona and Sitges Small Group Day Trip from Barcelona.