The Pool at Mercure San Sebastian Monte Igueldo
Mercure Monte Igueldo's pool is recommended by professional travelers. Of the 4 publications that we monitored, 2 acknowledged the pool, including DK Eyewitness and Star Service.
Mercure San Sebastian Monte Igueldo 
DK Eyewitness
Star Service
DK Eyewitness "It also has a rooftop swimming pool"
Star Service "The seasonal outdoor swimming pool is ideal for warm weather relaxation"
