The four star Hotel Balneario Aduana is set in a restored 18th century Neoclassic building in Orduna, 35 kilometres from Bilbao.

The hotel offers 800 metres of spa area with medicinal spring waters, sauna, jacuzzi, Turkish baths and beauty centre and indoor swimming pool. The hotel features an a la carte restaurant, bar-cafeteria, garden, terrace, meeting rooms, lift, lounge, business centre, parking, laundry service, reception desk and fax service.

Rooms in the Balneario Aduana are equipped with a hydro massage bath in the bathroom, hair dryer, satellite televsiion, internet connection, mini bar, safety deposit box, air conditioning, central heating, room service, desk and piped music.