Warning: Video images in this story may be distressing to some viewers
Photo: TikTok / @poprah12
Recent clashes between protesters and security guards for the development by Kennedy Point Boat Harbour Ltd have triggered police investigations.
In a video posted to Facebook, a protester on a pontoon is manhandled into the water by a man wearing a high-vis jacket.
While the protester is in the water, the man takes a step and kicks the person in the water in the head.
Police have been approached for comment.
One protester, who spoke to RNZ at the development site today, said the behaviour was dangerous.
Shoreline split over Tomales preschool plan
ptreyeslight.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ptreyeslight.com Daily Mail and Mail on Sunday newspapers.
Maynard, Stow residents to participate in Pan-Mass bike-a-thon
wickedlocal.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from wickedlocal.com Daily Mail and Mail on Sunday newspapers.
Penguins at Waiheke marina site reveal glaring hole in Wildlife Act, Greens say
stuff.co.nz - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from stuff.co.nz Daily Mail and Mail on Sunday newspapers.