I also get the impression that Southbeach cabanas have no USB port, no speaker, no ceiling fan, no power: A potentially true "disconnected" beach experience, to spin it positively. This is what I can deduce by watching videos about Coco Cay cabanas and an article in CruiseCritic. If I look at today's prices (for one of my future sailings) in $CAD: Thrill Water Park and Southbeach are both, $1,244.55 and according to at least 3 sources, seem to not have power, USB or speaker. Oasis and Chill Island are both $1,49371 and seem both to offer USB and/or power outlet, ceiling fan, speaker. Would be nice if this could be confirmed or debunked. Maybe I'll take that on myself in November 2021.