In which English county are 'The Lost Gardens of Heligan', a famous tourist attraction?

I've been there. They are surprisingly easy to find for something that is lost. Similar to "The Secret Bunker" in Fife, Scotland, which is well signposted (⁠•⁠‿⁠•⁠)

I'm lucky to live not far from Heligan and enjoy the gardens with a locals pass. The gardens are changing all the time, not just seasonally, but with the moving around of the resident animals. I love the Bengal rope bridge through the jungle.

fabulous place to visit