Top 10 Most Tropical Islands: The Cook Islands is a parliamentary democracy in the South Pacific Ocean in free association with New Zealand. It comprises 15 small islands whose total land area is 240 square kilometres sq mi)
Okay so this isn't Katy, but it's not far -this is a great article on the water pools of Texas. The cool water of Barton Springs pool invites people of all ages to swim and relax in Austin’s summer sun. I love this place!