Boo de Guarnizo, or simply Boo, is a suburb of the town of Guarnizo, part of the municipality of El Astillero. El Astillero is located in the province of Cantabria, in northern Spain. Boo de Guarnizo contains only slightly over 1,000 permanent residents. Nonetheless, more than a few tourists are attracted to the sleepy, sunny hamlet, located along the estuary of the Ria de Boo. Most of those who stay in Boo de Guarnizo hotels find the town a relaxing home base from which to explore the attractions of El Astillero and Santander, the capital of Cantabria.

The main points of interest around Boo de Guarnizo are the Santander Airport, Parque de la Ria del Carmen, and the Poligono Industrial La Cerrada. The Poligono Industrial La Cerrada is the region's biggest industrial center, processing goods shipped in from the port city of Santander. As for Boo de Guarnizo hotels, visit sites like EasyToBook.com to get the best information.