Tourism in Antarctica started with sea tourism in the 1960s. Air overflights of Antarctica started in the 1970s with sightseeing flights by airliners from Australia and New Zealand, and were resumed in the 1990s. Private yacht trips started in the late 1960s. The (summer) tour season lasts from November to March. Most of the estimated 14,762 visitors to Antarctica in 1999-2000 were on sea cruises. During the 2009 to 2010 tourist season, over 37,000 people visited Antarctica.
From album: Antarctica Tourism