Enjoy a day free for rest and relaxation at your hotel or for exploring the famous beaches that make up Isla Playa. Most popular are Playa El Sable and Playa de los Barcos, both boasting fine sands and clear waters surrounded by the lush green landscape that characterises this wonderful corner of Spain. Your tour manager will be on hand to point you in the right direction and to help you make the most of the day.

Today’s fascinating visit takes you to the great Basque city of Bilbao, astride the River Nervión. This bustling, vibrant metropolis combines the ancient with the thoroughly modern – the former reflected in the lanes and elegant arcades of Casco Viejo, its old town; the latter a wonderful riverside stroll away at the astonishingly futuristic Museo Guggenheim. This vast, titanium-clad edifice, with its vast atrium, is guarded by striking sculptures of a spider and some space-age tulips, and is home to one of Spain’s finest collections of modern art. Entry to the museum is included in a wonderful day that might also find you taking a ride on the city’s funicular for the panoramic views, or enjoying lunch in the old town.

On today’s optional tour you'll cross the border into south-west France, heading through the foothills of the Pyrenees, past the exquisite resort of St Jean de Luz and its half-timbered houses, to Biarritz. The "Monte Carlo of the Atlantic" is a paradise for pleasure-seekers and surfers who flock to the resort’s famous beaches, including the vast Grande Plage backed by the Casino Barrière and some even grander hotels. Stroll the gilded shoreline, and perhaps take a seat in a café or salon de thé to watch the world go by and soak up the atmosphere of one of France’s most sophisticated and colourful playgrounds, before returning to Isla and your hotel for dinner.

Head south from the coast on today’s included excursion into the La Rioja region, famed the world over for its rich red, fine white and sophisticated rosé wines. You’ll pay a visit to bustling Haro, centre of the Rioja Alta and home to several historic bodegas, at one of which you’ll enjoy a tasting and the opportunity to buy some wine. South of Haro, the fabled Camino de Santiago pilgrims’ trail snakes its way through the vine-covered landscape, past towns like Santa Domingo de la Calzada, which you’ll visit this afternoon to see its improbably fine cathedral. After a wonderful day, we'll return to Isla for the evening.

Our final optional tour will take you to the regional capital, Santander. This elegant and sophisticated city-resort has been a long-time favourite haunt of Madrid’s discerning holidaymakers, rivalling San Sebastian or Biarritz, and boasts superb El Sardinero beach resort, a beautifully restored old town set some distance away, and the beautiful peninsula of La Magdalena - which itself offers glorious views of the bay, the golden beaches and the coast beyond. During the visit, you’ll enjoy a short introductory tour, after which you will be free to explore under your own steam, or perhaps just enjoy the wonderful beach. Don’t miss the fishing port or the pavement cafés and tapas bars that dot the tree-lined avenues. You’ll return to Isla for a final evening.

Bid farewell to your Basque hosts, and transfer to Bilbao Airport to catch your flight home.