Depart from Santander at 9:30 AM and head to Santillana del Mar, a beautiful village of the Middle Ages. This village with is one of the best-known cultural and tourist centers of Cantabria. You will enjoy a walking tour along its cobbled streets until you reach its Plaza Mayor where you will see the Collegiate Church of Santa Juliana. There you will visit the museum of the local sculptor Jesús Otero. Afterward, you will have some free time to visit the Collegiate if you wish and do some shopping around. Afterward, you will head to the Altamira Museum. This museum houses a scale replica of the 'room of paintings', the so-called Neocave. This cave was declared World Heritage by Unesco in 1985. To protect its preservation, it currently allows only 5 people to visit it per week and this is the reason they created this replica from the cave. The cave is a natural cavity in the rock, with paintings dated from 35,600 years ago and it stands as one of the most important pictorial and artistic cycles of prehistoric paintings int he world.