Great Blue Hole
The Great Blue Hole is a giant marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll from the mainland and Belize City. The hole is circular in shape, across and deep. It was formed during several episodes of quaternary glaciation when sea levels were much lower. Analysis of stalactites found in the Great Blue Hole shows that formation took place 153,000; 66,000; 60,000; and 15,000 years ago. As the ocean began to rise again, the cave was flooded. The Great Blue Hole is a part of the larger Belize Barrier Reef Reserve System, a World Heritage Site of the United Nations Educational, Scientific and Cultural Organization (UNESCO).
Blue Line (TRAX)
Beyond East 10600 South, the Blue Line heads north-northwest until it reaches Sandy Civic Center (the former southern terminus of the Blue Line, until August 18, 2013). This station is several blocks east of Sandy City Hall and the South Towne Center Mall. The Porter Rockwell Trail runs by the east side of this station and, as the trail heads north, it crosses over to the west of the Blue Line tracks at East 10000 South/East 9800 South and then runs north parallel to the Blue Line until it ends at East 8530 South. From Sandy Civic Center, the Blue Line heads north, crossing East 10000 South/East 9800 South (Sego Lily Drive) and, while running along the west side of South 170 East, passing the east side of both Jordan High School and the South Towne Exposition Center. Just after crossing East 9400 South the Blue Line reaches an infill station, Sandy Expo, which provides service to Rio Tinto Stadium in addition to the South Towne Exposition Center.