My partner and I are sailing on Galaxy 18-30 December this year and chose this trip because the Panama Canal is on the itinerary. However, we're wondering what is the best way to see the sights. The ship goes into Lake Gatun from the Caribbean and back out again. Is it better to stay on the ship or to take one of the shore excursions, eg the coast to coast train, or even the ferry from Balboa back into the canal. Has anyone got any advice? Many thanks.