2016 Heard Island
2015 Australia, Europe
2014 Retirement of the Cordell Explorer
2013 Clipperton Island
2012 Educational research trips
2011 Educational research trips
2010 Educational research trips
2009 Educational research trips
2008 Educational research trips
2007 Educational research trips
2006 Educational research trips
2005 Kure Atoll (Pacific)
2004 Pt. Sur

1991 Pt. Sur

1989 North Farallons

1988 Pt. Sur

1987 Pt. Sur