The Cook Islands, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar circulates in parallel with the local Cook Islands Dollar; at the same time, the government also authorises many legal tender coins in the Cook Islands Dollar currency for collector's purposes.
Collector coins are dedicated to historical or general popular culture themes not related to the country itself. Many of them are in standard bullion sizes, but there are also non-standard formats such as the massive fifty grams of copper size used by some mints.
The Mint says about this coin:
The Titanic. The tragic story of a cruise ship and an iceberg. It is hands down the most famous maritime disaster of all time. Countless documentaries and movies have been made about the story. Just 160 minutes after the momentous accident happened on April 14th, 1912 the vessel sank dragging more than 1,500 people to an icy grave.
This coin range is dedicated to the Titanic and its tragic story. While the reverse shows the ship in full speed in ultra-high relief the obverse tells the tale. You can see the route across the Atlantic including the point where the tragedy happened. Furthermore, you have two different perspectives of the deck and cabin construction and the inner part of the Titanic. This might give you an idea why so many people were trapped inside the ship as it went down.
The series contains 5 different coins done in 3 metals.