Qype User (.
Yelp
I visited the lost gardens four years ago and long to return. It was a lost garden overgrown, hidden and rediscovered by an inheritor of the land together with Tim Smit who is the mastermind behind the Eden Project. This was his first garden too, and must hold a special place in his heart. Whereas the Eden Project is educational in the formal sense, this place is educational in the broadest sense as it will provide as much as you are willing to invest. I spent an entire day there by myself and wanted to stay a week to fully explore.
The garden has been restored to how it must have been at it's zenith - just prior to the First World War. Look for the messages, photographs and stories about the gardeners - most of whom went to War and failed to return, or if they survived never returned to Heligan causing the decay and disappearance of this magical place.
Don't miss out on any of the tours on offer - I did the what did we catch in the traps last night? tour, which mainly turned out to be moths but the guy who did it was so knowledgeable it was fascinating.
Also the jungle is a must, containing huge bamboos and giant plants from the southern hemisphere introduced in the Victorian heyday of plant collection (you may well think you're in Malaya)!
I loved the place so much, I bought the book by Tim Smit and would recommend it highly.