Dozens of albatrosses, fur seals, dolphins and penguins have been killed by trawling nets - and that's just from a fraction of boats.
In New Zealand, around 20 percent of houses are on floodplains.
The council is urging the Government to provide millions in funding to remove the invasive seaweed.
All over Aotearoa, people are watching the waters for a glimpse of marine mammal activity to contribute to the fifth annual survey.
"The scale of it is so wrong, the lack of respect for nature is so wrong."
It's thought the local landscape could be to blame.
Deadly heatwaves are scorching cities on four continents as the Northern Hemisphere marks the first day of summer.
The council has suggested alternatives for those wanting to celebrate a special occasion.
"This is extremely upsetting and our curators are investigating the extent of the damage."
"We will stand up and resist you with everything that we've got and we will stop you."
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Juvenile fur seals and sea lions are often found in unusual locations between June and September, when they begin exploring further afield from their usual habitats.
Low confidence in the government's climate plans may hit the coalition in the pocket.
Sea Lovers gin has sustainability and marine conservation at its core.
"I feel a bit bitter about it because we did so much work."
Simon Watts was speaking at a biodiversity conference when the protesters chipped in.
"It's time for a fresh start on how we engage with farmers and processors to work on biogenic methane."
The seaweed pest was found in shallow water during routine surveillance of high-risk areas.
Protests are happening in centres across the country on Saturday.
Greenpeace has been promoting this weekend's protest by displaying a "National Party-blue wrecking ball" with a figure depicting Prime Minister Christopher Luxon on top.
