Although Colombia has land and sea borders with many countries, there are only 4 legal routes of entry by road that we announce, if you plan to travel to Colombia in this way.
Venezuela is the country that has more border cities with Colombia, but there are only 3 legal tickets that are La Guajira, Arauca and Cúcuta, where you enter by vehicle and just submit your documentation in order.
To enter Colombia from Ecuador, you must arrive in Quito and from here on the road to Ipiales, which is where you will find the border crossing, where you must present your corresponding documentation.
From Brazil you can enter Colombia directly from Manaus to Leticia – Amazonas by the river. It is a short raft or boat tour, it is simple, here they do not require paperwork to move from one side to the other, since normally the people who do it are the same locals who daily cover this route.