It's most people's idea of a perfect holiday, lying on a beach in the sun, and these days we use sunscreen to block out the sun's dangerous Ultra Violet rays.
There are plenty of sunblock products, but they only contain a small amount of the most effective sun block of all, zinc. But zinc, because of its large particles, looks thick and unattractive, until now. This new type of block out, made with 70 percent zinc, is transparent.
It was developed by Dr.Terry Turney from Australia's science agency CSIRO and Michael Bos from Micronisers.
"It's much better in that zinc on the skin doesn't give you any health problems and it's a physical blockers so it actually stops the UV and absorbs it."
Zinc looks thick because it's made up of large particles. So a way was found to pulverize it into nano particles, so that it can absorb the sun's rays, be practically impossible for any rays to slip through the gaps between the particles, and look far more attractive.
"Those particles are really really small, they're about 20nm in size, now to give you an idea of how small that is it's about one thousand times smaller then the diameter of a hair."
The new sun blocker can also be used in paints, plastics and timber products without destroying the colour or texture.
"Australia, at the moment, has a real competitive advantage in this. I believe that not only should we be able to dominate the Australian market with these products but also to have a very substantial present in both the European and US markets."
Meanwhile back on the beach, this new Australian developed Ultra Violet blocker means sun lovers can have more effective protection for the sun's potentially dangerous rays.