What's on Events Fergus the Frog's Fun Facts It’s that time of year again – the museum grounds are about to be visited by hundreds of baby frogs! Follow Fergus the Frog’s family trail and fill in the quiz booklet to learn all about the frogs that make Wheal Martyn their home. Price: Included in standard museum admissionContact: [email protected] Location: Wheal Martyn grounds Manage Cookie Preferences