core_id  dive_id  dive_date  dive_lat  dive_lon  
GC-03    4776     2014-12-03  9.08655   -87.10120  
GC-04    4776     2014-12-03  9.08655   -87.10120  
GC-05    4778     2014-12-05  9.08152   -87.09362