Here is an article about Grupo Dolphin acquiring Marineland Florida from Georgia Aquarium: Grupo Dolphin continues its expansion and announces its latest acquisition, Marineland Florida | Swim with Dolphins with Dolphin Discovery
Marineland has been a target of activist groups for its dolphin-interaction programs, and while Georgia Aquarium has also been targeted for its attempts to import belugas and hold belugas, 5 dolphins died between 2012-2015 at Marineland. It's probably an image that the Georgia Aquarium didn't want to be associated with.
Usually there's an announcement, or at least the place says so on social media, so that's what I'd been waiting for! Very uneventful in that case.
Worth noting that it seems to be the first accredition from this program: Pathway Toward Membership Program I personally wish the Belle Isle Aquarium luck.
Nice to see some of the places on that list! Little Ray's Reptile Centre has been open less than a year.