These will include a Black Labyrinth Tour (The Legendary Black Water Rafting Co) at Waitomo, a guided tour at Matamata's Hobbiton Movie Set and the Steambox experience at Te Puia in Rotorua.
How much does Waitomo really have to do with the Lord of the Rings?
Well, quite a bit it turns out.
Andy Serkis did an Abyss tour at Waitomo to get in character ahead of the first movie in the series, The Fellowship of the Ring.
This went so well Sir Peter Jackson and Fran Walsh did a Labyrinth tour with their daughter and later Sir Peter returned to voyage through the Glow Worm Caves with Sir Ian McKlennan.
Billy Boyd and Dominic Monohan, who played Pippin and Merry in the LOTR movies, filming scenes in the Ruakuri cave.
And later audio, to run alongside underground scenes in Hobbit movies (such as Gollum's pool and Smaug's Hall) was recorded in both Ruakuri and Cathedral Caves.
LOTR and Hobbit fans know much of the action in these stories occurs underground -- and for good reason.
Author Tolkien's writings were informed by Scandinavian and Germanic legends which often depicted underground realms of dwarfs and goblins.
He also fought in World War 1 battles and knew about tunnel warfare at locations such as the Somme.
THL chief executive officer Grant Webster says the caves are one of New Zealand's oldest tourist attractions, "and so it's exciting to think they'll also soon be linked with the country's best known movies."
"In 1889 local Maori opened the doors to visitor tours and it's been a very special place for locals and visitors ever since.
"Generations of Kiwis have gazed in wonder at the sights they've seen in these cave systems.
"Soon those hungry to picture scenes from Middle Earth will be able to let their imaginations run wild here too.
"In view of all of those subterranean locations created by Tolkien, it seems appropriate we provide tourists with this opportunity."
