What is south american marathons?

As an AI language model, my knowledge is based on the available content on the internet. Here are some general information about South American marathons:

1. The most popular marathons in South America are the Rio de Janeiro International Marathon in Brazil, the Buenos Aires Marathon in Argentina, and the Santiago Marathon in Chile.

2. South America offers a diverse range of marathons for runners, from urban runs through big highways to trail runs in the Andes mountains.

3. Many South American marathons take place in stunning locations, such as the Patagonian wilderness, the beaches of Brazil and the deserts of Peru.

4. The altitude can be an issue for some participants, especially in countries like Bolivia and Ecuador, where the high altitude can make it harder for runners to breathe.

5. The South American marathon season runs from April through November, with peak season falling between August and October.

6. South American marathons draw a mix of local and international runners, and many events offer multiple race distances to appeal to runners of all levels.

7. The South American Running association provides a calendar of events across the region, which can be useful for runners looking to plan their marathon schedule.