Offering a vending machine and a lift, the 2-star Hotel C31 Castelldefels is nestled 250 metres from Morena Barcelona and 4.2 km from Les Botigues de Sitges Beach. Featuring rooms with views of the patio, this comfortable hotel boasts a prime setting along with an outdoor swimming pool available onsite.

The centre of Castelldefels can be reached in 10 minutes' walk of the hotel, and such cultural venues as the Gavà Museum are 4.4 km away. Gavà Beach is within a few blocks of the C31, while CAP Can Bou bus stop is around 5 minutes' drive away. This accommodation is also 4.6 km from the Gavà Mines Archaeological Park. For those travelling from afar, Barcelona-El Prat airport is 15 minutes' drive away.

Hotel C31 offers rooms with a patio and a balcony featuring a trouser press and air conditioning, along with complimentary Wi-Fi and a flat-screen TV with satellite channels. There is also a private bathroom. Bathrooms are equipped with a separate toilet and a shower, as well as comforts such as a hair dryer and bath sheets.

A continental buffet breakfast is offered at this Castelldefels hotel. Guests are invited to the onsite outdoor bar to unwind with a drink. Vermuteria Barriles is adjacent to the C31 Castelldefels, approximately 300 metres away.