The secret garden, eat your heart out. This stunning garden is Helen Dillon's private garden, which she graciously opens to garden lovers. Located in the leafy suburb of Ranelagh, this piece of paradise is one of the city's real hidden gems. Lovingly created, this immaculate town garden is divided into 'garden rooms' that reveal an ever-changing oasis of sights and smells. Be warned, though, it’s not one you'll be able to recreate overnight, but you can always buy the book! No pets are allowed and children by prior arrangement only.