I studied Spanish at a Spanish Language School, The Amazon Spanish College, and had a great time in Leticia. I made many new friends both other international students and locals.       
  
Leticia is the capital of the department of Amazonas in Colombia and is located in the most Southern part of the country where Colombia, Brazil and Peru meet on the Amazon river. The unique setting of the city makes it a direct neighbor with the Brazilian city of Tabatinga and with the island of Santa Rosa, Peru. Leticia has approximately 55 000 inhabitants. 
  
Year round, there's lots of wildlife to be seen in the Amazon region, including monkeys, ocelots and dolphins, and array of birdlife and there are also indigenous villages that can be visited. You might also go fishing or Caiman spotting. The School arranges day tours and rainforests excursions in and around Leticia, as well as lodgment in natural reserves by the Amazon River. 
  
Popular are jungle trips to the nearby Amazon jungle, the natural reserve Marasha in Peru, the national park Amacayacu, the Ticuna settlement Puerto Nariño, Isla de los Micos (Monkey Island) and the visit of communities of the Ticuna, Yagua, Huitoto and Bora tribes. It is also nice to hire a Bicycle or go on a night time safari.  

Interesting tours: 

Puerto Nariño & Tarapoto Lakes (see the pink dolphins)

Monkey Island

 Walk through Leticia

Bicycle trip to Tabatinga (Brazil)

Nighttime Safari 

Bird Watching