Women's Health Action's maternal and child health promoter Isis McKay said communities around the country were the heart of the supportive event.
"The Big Latch On is successful because it operates at a grass roots level. Each event is unique, shaped according to the ethos and culture of the community organising it," she said.
"From a maternal gathering on a pig farm, to en-masse marae sit-ins, we've even had women taking part 30,000 feet in the air; an in-flight Big Latch On."
For the second year, women can also take part via a virtual Big Latch On by posting a breastfeeding selfie to #biglatchonNZ www.facebook.com/biglatchonNZ
"There is evidence that women increase their internet use by up to 45 per cent after becoming mothers, and if they're back at work or unable to make it to a physical Big Latch On, this on-line option may work for them," Ms McKay said.
-To register a Big Latch On event go to www.biglatchon.org.nz or phone 09 520 5295.