Mousehole Mousehole (Porthenys) is a village and fishing port in Cornwall, England, United Kingdom. The village is in the parish of Penzance. An islet called St Clement’s Isle lies 400 yards offshore from the harbour. Mousehole lies within the Cornwall Area of Outstanding Natural Beauty. Limited Edition: 195 Image size: 30 x 30cms (paper size 35.5 x 35cms approx) Price: £85 Share on Facebook or TwitterShareTweet