Blue Hole, Lighthouse Reef, Belize (map), 2002
Photograph by David Doubilet
Approximately 60 miles (100 kilometers) from Belize City, the almost perfectly circular Blue Hole is more than 1,000 feet (305 meters) across and some 400 feet (123 meters) deep.
The hole is the opening to what was a dry cave system during the Ice Age. When the ice melted and the sea level rose, the caves were flooded, creating what is now a magnet for intrepid divers. Today the Blue Hole is famed for its sponges, barracuda, corals, angelfish—and a school of sharks often seen patrolling the hole抯 edge. 抱歉，没有中文的介绍 作者: 红袖添乱 时间: 2003-5-23 22:58 标题: [推荐] 国家地理杂志图片（2）
A common inhabitant of many reef systems, the banded coral shrimp is distinguished by its long hairlike antennae and its candy-cane color scheme. One of many shrimp species known as cleaners, it perches on corals, sponges, and other animals to feed, using its pincers to 揷lean?parasites off the larger animals作者: 红袖添乱 时间: 2003-5-23 23:00 标题: [推荐] 国家地理杂志图片（2）
