USE THE BIKE IN SANTANDER: RENT A BIKE
The town hall hires bikes so you will have a good opportunity to move freely and fast. The information you can get easily from the tourist office in the Pereda Gardens. There is one of the main bike stations near. There are different cards and even for one day or one week, the first hour is free and the hour price is very low. The best option is to go to the beaches in the Sardinero by bike because there is cycle line from the city center that goes along the beaches on a wooden platform. Be careful the busy hours, it can be full of people!. If you want to have more ideas you can visit some web pages where even you can have a map.