> They sit alongside a mangrove-studded wetland and an ocean larger than an Olympic swimming pool..

I’m tired of the colloquial use of “Olympic sized swimming pool,” as a size as they’re rarely correct. FINA, or whatever they’ve rebranded themselves as, defines an Olympic-sized pool at 50m x 25m or 1250 square meters.

Biosphere 2’s ocean was 35m x 20m (700).