ocr: Tourism is now Australia's largest single foreign- exchange eamer, accounting for 10% of the total. Faster, cheaper air travel and highly successful govemment marketing campaigns draw tourists in increasing numbers, especially from Asia, which has been the focus of. Australia's strategy to develop tourism's rich potential. The Japanese are now the largest single group of visitors, although many also come from Europe,North America and New Zealand. While Japanese tourists stay a shorter time - on average eight nights - they tend to spend more than other nationalities. The country's attractions i ...