Reduced to $1.50 per litre/bottle. Sighted at VIC 3174.
Could be various stores SO check your local Coles refrigerated sections. (Mine where the Chilled milks are)
Cheaper than previous 'branded' deals - https://www.ozbargain.com.au/tag/coconut-water
NSW post https://www.ozbargain.com.au/node/494017#comment-7922860
https://www.ozbargain.com.au/node/494017