year  cruise_id  lat      lon      
2007  Nghza-07   20.2167  58.7500  
2008  Nghza-08   20.2167  58.7500  
2009  Nghza-09   20.2167  58.7500  
2010  Nghza-10   20.2167  58.7500  
2011  Nghza-11   20.2167  58.7500