The three star Puerta de Santillana Hotel is located four kilometres from the centre of Santilla del Mar in the region of Puente de San Miguel. The nearest beach is eight kilometres away and Santander is 20 kilometres away.

The 28 rooms at the hotel (distributed over two buildings) offer a bathroom with complimentary toiletries, hair dryer, shower and bath. They have a telephone, satellite television, desk, internet access, mini bar, radio alarm clock, stereo, video games (on request), centrally regulated air conditioning and central heating and a safety deposit box (at an extra charge).

Opened in 2005, the Puerta de Santillana features a garden with a terrace, foyer with 24 hour reception, a café, restaurant, breakfast room, public internet connection, lift, room service, car park, children's playground and swimming pool with sun terrace.