Tourists are stranded at Milford Sound after 20 avalanches hit Milford Rd during Tuesday's storm.
Hollyford Rd has also been hit by a massive landslide, trapping tourists at Gunns Camp.
Milford Sound Lodge general manager Christine Wallace said 15 people were at the lodge.
"They are all good-natured about the situation and making the most of having Milford Sound largely to themselves.
"Many have commented they had never experienced a storm quite like the one we had and thoroughly enjoyed the Fiordland performance," she said.
NZ Transport Agency area manager Peter Robinson said the Tuesday storm was one of the worst to hit Fiordland in 25 years.
Avalanches affected a 12km stretch on the Milford Rd, including a section which was hit by three separate avalanches leaving a five metre deep layer of snow, he said.
The road to Milford has been closed since Tuesday and the authority hoped to have it reopened before the weekend.
Clean-up crews were yesterday busy clearing snow, debris and trees off roads in the south.
Fallen trees that were blocking the road between Te Anau Downs and the Hollyford turn-off were removed up to Mirror Lakes, he said.
Wallace said staff were well trained to handle the logistics of the closures and were "well practised" after extensive closures over summer, she said.
There would be no issues with food and other supplies until the road reopened as everyone was sharing resources, Wallace said..
"[Boat operator] Southern Discoveries have kindly taken them on a morning cruise and they were lucky enough to see seals, dolphins, penguins, and probably the biggest waterfalls of the year."
Milford Helicopters pilot Snow Mullally said a Wellington couple were stuck at Gunns Camp, off the landslide-stricken Hollyford Rd, who "want out".
Gunns Camp staff could not be reached for comment.
The clean-up crew made good progress yesterday and work will resume today to clear the roads affected, including Te Anau Downs to Knobs Flat.
PowerNet general manager network operations Gary Pritchard said almost 10,000 customers throughout Southland and parts of Otago experienced power disruptions for about six hours on Tuesday night.
"PowerNet and its contractors were busy throughout the day responding to reports of power supply problems caused by the adverse weather.
"Across Southland the worst affected areas were Dipton, Centre Bush, Hillside, Riversdale, Riverton and Waikaka," he said.
The Stewart Island ferry service was cancelled on Monday afternoon from Bluff and Tuesday morning from Stewart Island because of the rough weather conditions. Fire southern communications shift manager Brent Dunn said there were only a handful of wind-related calls in Southland and Otago, all of which were "minor" compared to elsewhere in the South Island.
Southland Federated Farmers president Russell MacPherson was unaware of any weather-related problems for farmers.
MetService meteorologist John Law said the lower South Island could expect drier and clearer conditions leading into the weekend bringing cooler temperatures, frosts and snow to 600 metres.
- © Fairfax NZ News
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