''It's one of my favourite cities because the people are so friendly and helpful,'' Mr Horn said yesterday.
His ice-strengthened, multimillion-dollar aluminium yacht Pangaea has been moored at Birch St Wharf since early last month.
Mr Horn was fulfilling a lifelong dream when he recently completed a 5100km, 57-day traverse of the Antarctic, including visiting the South Pole, by kite ski.
It is understood to be the longest kite ski journey across the Antarctic.
South African-born Mr Horn (50), who lives in Switzerland, travelled elsewhere in the South Island while visiting Dunedin, including Queenstown and climbing 2819m high Mt Earnslaw, in Mount Aspiring National Park.
He had been ''amazed'' by the landscapes of southern New Zealand, and was impressed by the country's success in protecting its ''natural beauty''.
Before he left for Sydney, Mr Horn said he would fly back to Dunedin in about three weeks.
He would spend more time in the city, and would then be based in Glenorchy, working with a French television crew, filming an outdoor survival programme based on climbing Mt Earnslaw.
A second programme would also be shot in the South.
