With just a month until the festival, tickets to the Hidden Gems and Woodchester Walls and Waterfalls tours are proving popular.
The two tours are being offered in addition to the 23 gardens that will be open for the festival, from November 1 to 3.
Hidden Gems is a self-drive tour in the Lowry Hills to visit three gardens and enjoy hospitality at each destination.
The Woodchester Walls and Waterfalls excursion is a bus tour of a high country station.
Festival secretary Anita Todd says while it is called Hidden Gems, the word is out about the self-drive tour of three gardens nestled against the Lowry Hills.
''We thought this year we would offer our visitors an unforgettable self-drive tour of Wynyard, with its native garden, Black Rock with its rare and unusual perennials, and Ribbonwood, which has the most amazing views of the Kaikouras,'' Anita says.
''Ticket sales for the tour, which must be purchased in advance, are selling well, particularly on Friday and Saturday.
''If people want to discover these hidden gems, which includes morning tea at Wynyard, lunch at Black Rock and wine and cheese at Ribbonwood, they need to buy their tickets today,'' she says.
The Walls and Waterfalls tour visits Woodchester Station, home to the celebrated Wall of Waiau and Lake Rebekah, created when fault-lines ruptured in the 2016 Waiau-Kaikoura earthquake.
A massive landslide dammed the Leader River and flooded the valley to form the kilometre-long lake.
Tour guests will be served lunch in the garden of the homestead which includes an extraordinary hillside garden featuring more than 100 rhododendrons.
''It seems the chance to inspect the awesome impact of the 2016 Waiau-Kaikoura earthquakes is proving very popular,'' Anita says.
''With just one tour each day, limited to 40 visitors, almost all the tickets to Friday's and Saturday's tours have sold. Seats are still available on Sunday for people who get in quick.''
Tickets for each tour cost $95. For more information and to buy tickets, visit hurunuigardenfestival.com.
