Eco Canal Cruise On Gatún Lake And Miraflores Locks. Explore the manmade body of water at the heart of the Panama Canal on a 5-hour boat tour of Gatún Lake from Panama City. Learn how mountain peaks turned into islands when the canal was flooded, preserving unique wildlife and untouched jungle environments. Watch for monkeys, sloths and crocodiles as you cruise the shoreline, discover back channels and quiet bays, then learn about the engineering history of the canal at Miraflores Locks. Book with us and Save 10%! Eco Canal Cruise On Gatún Lake And Miraflores Locks.