Andrew said at this time of year with so many holidaymakers passing through there was always a "good vibe" in the town - and "it's just something to add to it".
Customers had been coming in this morning to check their tickets with a bit of apprehension, she said.
"I just wish the person or people that won it best of luck."
Over the past decade, 374 Kiwis have become millionaires after winning the jackpot, and collectively Lotto players have won almost $4 billion.
The biggest win came in 2016 when a young couple from the Hibiscus Coast, who had been "busting their guts" to buy their first home, stopped by a dairy to get their regular ticket.
But that weekend, they won the biggest ever Lotto prize - $44m.