arrive from the smaller tourism centre of Te Anau, away. There are also scenic flights by light aircraft and helicopter tours to and from Milford Sound Airport. The drive to Milford Sound itself passes through unspoiled mountain landscapes before entering the Homer Tunnel which emerges into rain-forest-carpeted canyons that descend to the sound. The winding mountain road, while of high standards, is very prone to avalanches and closures during the winter half of the year. The long distance to the sound means that tourist operators from Queenstown all depart very early in the day, arriving back only late in the evening. This ensures that most tourists visit Milford Sound within a few hours around midday, leading to some congestion on the roads and at the tourist facilities during the main season. The peak-time demand is also the reason for the large number of tour boats active in the sound at much the same time. Over the years, various options of shortening the distance to Milford Sound from Queenstown have been mooted, including a gondola route, a new tunnel from Queenstown, or a monorail from near Lake Wakatipu to Te Anau Downs. All would reduce the current round-trip duration (which has to travel via Te Anau), thus allowing tourism to be spread out over more of the day. While a gondola is considered to be out of the running after the DOC declined approval for environmental reasons, the tunnel and the monorail proposals have applied to the Department of Conservation for concessions for land access. There are a variety of plane charter companies that fly to Milford Sound. Most of the companies fly out of Queenstown International Airport. These companies include: True South Flights, Glenorchy Air, Air Milford, and Milford Sound Scenic Flights. Diesel spill On 8 February 2004, a spill of 13,000 litres of diesel fuel was discovered, resulting in a 2-kilometre spill which closed the fiord for two days while intensive cleanup activities were completed. A hose was apparently used to displace the fuel from the tanks of one of the tour vessels, and various government officials claimed it appeared to be an act of ecoterrorism motivated by rising numbers of tourists to the park, though more details did not become known. The spill was removed and wildlife impact appears minimal. See also Doubtful Sound Dusky Sound Fiordland Milford Sound Airport Transport in Milford Sound References Further reading External