Located around 20 minutes on foot from Aquarium, the 2-star smoke-free Pension Grosen San Sebastian features Wi-Fi in public areas and public parking nearby. The guest house is a good starting point for San Sebastian's sports attractions, including Estadio Municipal de Anoeta Stadium, which is 2.1 km away.

The centre of San Sebastian can be reached within a 15-minute walk, and natural attractions like Plaza Gipuzkoa Park are a mere 14 minutes' stroll away. The contemporary Peine Del Viento Sculpture stands 2.9 km from the Pension Grosen San Sebastian. Nature lovers will appreciate the proximity to Zurriola, which is nearly a 5-minute drive away. This San Sebastian hotel is situated within reach of the filled Alderdi Eder Park, while Donostiako Auto Geltokia / Gare routiere de San Sebastian bus station lies 700 metres away. For those travelling from afar, San Sebastian airport is 19 minutes' drive away.

The allergy-friendly rooms are appointed with sound-proof windows, and such modern facilities as an iPad and a flat-screen TV with satellite channels. They are furnished with modern decor. Offering such amenities as hair dryers and free toiletries, the bathrooms also include a separate toilet and a shower.

While staying at Pension Grosen, guests can choose from dining options nearby, such as La Cueva del Pollo, located just a 5-minute walk away, or Kinza cafe-bistro at a 5-minute walking distance.