Visit Plan your visit Prices Pay once and get free entry all year! (full price tickets only) The cafe and gift shop are free to enter. Adults (17+) £9.75 Children (5 – 16) £5.50 Children (under 5) Free Family saver ticket (2 adults and 2 children) £28.00 Family saver ticket (2 adults and up to 4 children) £34.00 Please be aware that all children under 16 must be accompanied by an adult. Companions assisting disabled visitors are admitted free of charge. Buy a ticket Groups Groups and coaches are welcome and reduced rates are available for groups of 10 or over. Guided tours and group catering packages are also available on request. Please contact us for more information at [email protected] Cornwall Residents’ Pass Do you live in Cornwall? From 1 November 2020 to 31 March 2021, we are offering discounted annual admission to anyone resident in Cornwall - just £7.50 per adult and £5.00 per child (5+). This includes free re-admission for 12 months. All you need to do is show proof of address to purchase your annual ticket. Alternatively, an annual admission can also be given as a gift. To find out more about the offer click here. Free entry offer Free entry to Wheal Martyn between 17 - 31 January for members of: Lost Gardens of Heligan Eden Project National Maritime Museum Cornwall Trebah Garden Minack Theatre If you are a Friend of Wheal Martyn or a member of the China Clay History Society, you can purchase free entry to the above organisations in January via their websites.