A 64-tonne, 12m-tall submerged greenhouse, the only building of its kind on the seabed, with 20 'reef guardian' child figures…A 64-tonne, 12m-tall submerged greenhouse, the only building of its kind on the seabed, with 20 'reef guardian' child figures inside and coral trees growing through the frame. Nearby, the Ocean Sentinels, eight hybrid figures of real reef scientists with coral-form heads. The Museum of Underwater Art opened its Coral Greenhouse in 2020, engineered by Taylor to survive category-4 cyclones for 60 years. The Ocean Sentinels followed in 2022, each portraying a living marine scientist. Part of a state project to give the Reef an art-driven tourism lifeline after mass bleaching. Anchorage: Reef moorings on John Brewer; 40nm offshore, settled-weather passage only. Hazards: No site-specific hazards noted, brief normally. Más