Klook is a website where you can book tickets for various activities, attractions, shows, tours, or travel in Asia, Australia, Europe, New Zealand, and the US. They often have the best prices available online.
One of the most popular sites with deals in New Zealand. You can browse through a lot of travel and restaurant deals, but you can find much more, for example, a discounted mechanic check-up.
In Australia, Groupon is also one of the most popular discount websites.