Here are the Details of New Zealand.

When to go
Good Sep - May
Marine Life
New Zealand's sub-tropical North Island has rock cliffs and formations covered with sponges, gorgonia and anemones with huge schools of tropical and coldwater fish. South Island'sFiorland has red and black coral at shallow depths because a layer of murkey, fresh water blocks the sun. The far south has huge kelp forests.
Scenic in the north, challenging but rewarding in the south. Live-aboards also operate.
North Island has the Three Kings Islands off the norther tip, the Poor Knights off Paihia with their rock sculptures rich in marine life, and the anemone-encrusted Rainbow Warrior wreck at the Cavalli Islands. Wouth Island has Fiordland in the south-west, giv-clear inland Walkoropupu Springs, and the mighty wreck of the Russian cruise ship Mikhail Lermontov - one of the largest and most accessible shipwrecks in the world, which sank in 1986 while attempting a shortcut off Port Gore in the Marlborough Sound.
In Water
Light to medium weight wetsuits in the north in summer, otherwise thick wetsuits or even drysuits.
On Land
Light clothing for summer, but take a brolly and warm clothes as the weather can be as unpredictable as in the UK.
Strong currents and rough weather can make some New Zealand sites very demanding. The Mikhail Lermontov has claimed the lives of several unwary divers who got trapped in its labyrinth of corridors.
New Zealand Dollar