“Window in the Waves,” the story of the Flower Garden Banks, will re-air at 8 p.m. Wednesday on WLPB, channel 27 (cable Channel 12).

The half-hour documentary by Director of Photography Todd Richard, of Synergy Productions, in association with LPB, profiles the Flower Gardens, a group of coral reefs 110 miles off the Louisiana/Texas coast.

Unknown to many, the reefs are ranked among the healthiest in the world.