Go for a stroll by the water and get some fresh air at Charlestown Harbour. It's always relaxing watching the boats coming and going.
This place for ships to anchor doesn't cost a thing to visit, which is terrific news if you're watching your money. Charlestown Harbour is located in Charlestown. When you're done, Eden Project, Lost Gardens of Heligan and St Austell Brewery are in the area and also worth checking out.