No wonder voldermort named his snake this. Two white Nāginī. A female nāga is a nāgī or nāginī. Nāga is the Sanskrit and Pāli word for a deity taking the form of a very great snake—specifically the King Cobra, found in Hinduism and Buddhism.
In Greek mythology, the sirens were dangerous and beautiful creatures, portrayed as femmes fatales who lured nearby sailors with their enchanting music and voices to shipwreck on the rocky coast of their island.
I'm usually not that big on the whole 'natural play spaces' thing because most of them look too much like workout equipment and don't have much room for imaginative play- but this one actually looks great!