Some underground drug traffic from Peru passes through the area by river to Manaus, Brazil, but there is no danger to the normal tourist and there is no harassment of foreigners. Tours Tours can be arranged for groups up to 14 on an Amazon riverboat owned and run by an American named Capt. You sleep in hammocks or on the deck, eat local food prepared onboard and have the flexibility of seeing what you want to see during the 4-5 days or so that it takes to see the Colombian Amazon. A special expedition ham radio call sign of 5K9AQ has been authorized by the Colombian government for the year 2000 for licensed hams. Flights are direct from Bogota to Leticia so you are not placed in any dangerous areas in Colombia before you get to the Amazon.
Photo opportunities are abundant.
I took 300 digital pictures in less than a week and got some real winners.