Only a 5-minute walk from Alghero Cathedral, Poseidon B&B is set in a 19th-century building. It features air-conditioned rooms and an Italian sweet breakfast, served buffet style. Offering a flat-screen TV and free Wi-Fi, spacious rooms at the Poseidon come with high ceilings and a private bathroom. In the surroundings, guests can find many bars and restaurants. Canoeing and diving are also available on request. A shared fully equipped kitchen is available for all guests. A bus stop with links to Fertilia Airport and sandy beaches is 650 feet away, while the nearest beach is a 10-minute walk from the B&B. The property is 1,000 feet from the harbor.