It runs 41 miles from Colon on the Atlantic to Balboa on the Pacific
[DOC] [TLE] Panama Canal - World Atlas [PAR] ... Colon on the Atlantic Ocean (Caribbean Sea) side, to Balboa and the Pacific ... 
Then it's a 40 mile trip to the locks at Pedro Miguel, locks that lower the ship 30... [DOC] [TLE] panama - Palgrave Connect [PAR] the Pacific; total area (excluding the Canal Zone) is 28,576 sq.