1995 3 months hiking and camping in New Zealand
1996 3 weeks hiking and camping in northern Sweden and Norway
1999 4 weeks birdwatching, hiking and camping in South Africa
1999 4 months hiking and birdwatching in Alaska and Canada
2002 2 months birdwatching, hiking and camping in Ecuador
2004 2 months birdwatching and hiking in Papua New Guinea
2005-2009 several hiking and skiing trips in Alaska
2008 1 week birdwatching and hiking in Hawaii
2009 2 weeks birdwatching and hiking in Thailand

Other countries visited on shorter trips: Austria, Australia, Croatia, Czech Republic, Denmark, England, France, Hong Kong, Hungary, Italy, Japan, Netherlands, Peru, Spain, Switzerland, Taiwan.