A post-mortem examination is taking place in Wellington today to determine the exact cause of Sarah Mayne's death.
Further inquiries are being undertaken today in relation to the unexplained death.
Police would still like to hear from anyone who saw or heard anything unusual around the lagoon 9.00pm on Friday 15 February to around 3.00am Saturday 16 February 2019.
Call Crimestoppers anonymously on 0800 555 111.
Issued by Police Media Centre