@snowleopard
It is the previous manatee pool, although before it didn't have the island and was slightly deeper
The manatees have moved to the tropical dome and an even larger pool, along with the arapaimas and pacus they were mixed with.
They have done some good refurbishing to turn the strange(brilliant but strange)manatee pool into this.This also increases the number of crocodilians Beauval has,another excuse to revisit(I love crocodilians)