Is your Mauna Loa Macadamia Nut Visitor Center open? Customer Care November 30, 2020 23:00 Updated Due to the pandemic, our visitor center is closed until further notice. Related articles Do you offer discounts or promotions? I need to change or cancel my order! How do I open a wholesale account? When is the last day to order for the Holidays? When will I receive my tracking information for my order?