 I'm perched on a little stool under the shade of a parasol and in front of me I can see the wide expanse of the Mediterranean Sea. There are paddle boarders, swimmers, people just enjoying the sun, sea and sand. I'm in Larnaca on the south coast of Cyprus. You wouldn't have thought it from the water in front of me but Cyprus is one of the most water-stressed countries in the world and that means its resources fall short of its needs.