Greece and the Greek Islands are all inundated with stray, abandoned and feral cats. The majority of them are born in the spring and survive through the kindness of tourists who feed them. At the end of the summer season the tourists leave and then some survive through the kindness of local Greeks, some die of starvation and some unfortunately fall foul of cat hating people who poison them. Despite this, their breeding potential is phenomenal. If an average female produces three litters of four kittens annually and the female kittens go on at the same rate, the result is about 5,000 cats from a single breeding female in four years. For this reason the Greek Cat Welfare Society was formed in 1992. Our aim is to undertake neutering of colonies of stray cats and in doing so educate and encourage local people to also have their animals neutered. Trap, neuter and return (TNR) is now recognised to be the only humane method of decreasing the stray cat population, which over time will work providing TNR is carried out on a regular basis several times a year.