Flower Garden Banks National Marine Sanctuary

Flower Garden Banks National Marine Sanctuary protects three underwater banks in the Gulf of Mexico that host coral reefs forming the northernmost reef system in the continental United States. The sanctuary covers a large area where diverse marine life thrives in the clear waters above the banks.

The United States Coast and Geodetic Survey first mapped these underwater banks in 1936, revealing important scientific insights about coral development in these waters. The site was later designated as a protected sanctuary to guard against damage to the fragile ecosystems.

Research vessels and scientific teams conduct regular monitoring missions from their base at Fort Crockett in Galveston to study the marine ecosystems point.

Visitors should expect clear but deep water that requires proper diving skills and preparation for offshore conditions. The sanctuary has strict rules against anchoring in most areas, so mooring buoys provide the best way to secure your boat safely.

During summer months, multiple coral species release their reproductive materials simultaneously, creating a rare synchronized event beneath the water. This phenomenon draws particular attention from research teams monitoring the health of the ecosystem.

Operator: National Oceanographic and Atmospheric Administration

Website: https://flowergarden.noaa.gov

GPS coordinates: 27.87004,-93.83284

Latest update: December 8, 2025 19:55