The best beaches in Tarragona are Del Miracle, De L'arrabassada and Dels Capellans, while nudists relax at De La Savinosa, Fonda and De La Roca Plana.
An excellent vantage point overlooking the sea, the city and the ancient amphitheater is called Balcó del Mediterrani (Mediterranean Balcony). Other interesting sights: Roman Forum, Cathedral, archaeological promenade, Castellarnau Palace, Canals Mansion, Balsells House - can be seen in 3 hours. The Poblet Monastery, Castell de Tamarit Castle and Les Ferreres Aqueduct, nicknamed the Devil's Bridge by locals, are worth seeing in the city's outskirts.
How to get there? The resort is located 100 kilometers from Barcelona. From El Prat airport you can get to Tarragona in an hour by bus (€20). There are high-speed trains from Barcelona Sants station that will get you there in half an hour (€40).
Alicante
Great beaches + a lot of interesting sights - that's the secret of Alicante's popularity.
The best beaches are Urbanova and Postiguet. And here's what you should leave them for a while and go for a walk: Santa Barbara Fortress, MACA Museum of Modern Art, which collection includes paintings by Dali and Picasso, Explanada de España alley, Mercado Central market, St. Nicholas Cathedral, Gothic Basilica of St. Mary, City Hall.