| Flat as a washed-up jellyfish, the 217 hectare sand cay is only 4m above sea level at its highest point. |
| We went over every inch of the cay and theres not a living soul on it. |
| When those first ships hove over the horizon, San Salvador, a small cay, was lush with groves of mahogany, lignum vitae, and redcedar. |
| Heron is a tiny Barrier Reef coral cay, of only 17 hectares, in the Capricornia Group of islands of Australia's Great Barrier Reef. |
| From Cairns, you can take a scenic sea plane to Green Island or land for lunch on a secluded sandy cay. |
| We anchor alone in the lee of the cay, pile into the inflatable dinghy, don our masks and fins, and spend the next hour swimming with dolphins. |
