It is said that the amount over which ultraviolet rays pours down is about seven times Japan in New Zealand. Ultraviolet rays is bad for our hearth. Cause of skin cancer and eye cancer. Many New Zea lander are skin cancer or eye cancer. So in New Zealand, people wear hat, sun glass, Long sleeves and pants! If you go to NZ you have to bring hat, sun glass and sunscreen.
There are health campaign it called 'Slip-Slop-Slap' in New Zealand. The health campaign was extended in later years to encourage the use of sun glass. That is, slip on a shirt, slop on the sunscreen, slap on a hat and wrap on some sunnies: "Slip, Slop, Slap, Wrap".
