Hundreds of people who helped to refloat 46 whales that became stranded at Golden Bay will be hoping they manage to get to deeper water overnight because it could be their last chance of survival.
The Department of Conservation (DoC) said nothing more could be done tonight to help the pilot whales, which were still in fairly shallow water off Farewell Spit.
Fifty whales re-stranded near Puponga overnight after they were earlier refloated from nearby Triangle Flat at Farewell Spit.
Two whales were found dead and two others died later but the remaining 46 were refloated.
It was hoped the whales would make their way into deeper water overnight and not restrand, DOC said.