Gatun Lake forms a major component of the Panama Canal.You can take a tour and immerse yourself in the nature, history and impressive engineering of the Panama Canal during this 45-minute boat tour. This major part of the canal is home to abundant tropical wildlife and is surrounded by a lush forest. I recently took one of these tours through Gamboa Rainforest Resort. I was fascinated by the beauty of my surroundings and the flora and fauna of the area. The cost of the trip is under $40 for adults.