Limon Bay is a natural harbor located at the north end of the Panama Canal, west of the cities of Cristóbal and Colón. Ships waiting to enter the canal stay here, protected from storms by breakwaters.
Wikipedia https://en.wikipedia.org/wiki/Limon_Bay
Britannica website http://www.britannica.com/EBchecked/topic/341533/Bahia-Limon
Coordinates 9°19'59.999" N -79°55'59.999" E