Largest coral reef system
The current largest coral reef system record is 132,974 sq mi, held by Great Barrier Reef. Last checked October 14, 2026.
132,974
sq mi
Great Barrier Reef
- Holder
- Great Barrier Reef
- Record
- 132,974 sq mi
- Metric
- 344,400 km²
- Exact figure
- About 344,400 km2 (133,000 sq mi)
- Location
- Queensland, Australia
- Last checked
- October 14, 2026
Sources
- Wikipedia Great Barrier Reef
- noaa.gov Read the source
- wwf.org.au Great barrier reef
- gbrmpa.gov.au Fascinating facts about great barrier reef
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