A Tauranga man found seriously injured on The Strand is in Waikato Hospital.
A Waikato DHB spokesperson says the 39-year-old man is critical in the intensive care unit.
He was flown to Waikato Hospital on Sunday after being found unresponsive on The Strand, next to the playground, around 3.30am.
Police believe he was assaulted around 3.20am.
Police are investigating the assault and would like to hear from anyone who may have information which may help the investigation.
They can contact Tauranga Police on 07 213 1825, or Crimestoppers anonymously on 0800 555 111.