Warning: Graphic content. The man and woman each landed a hefty fine after a police office arrived on the scene just in time to find them bringing their al fresco romp to an end
Passersby filmed the al fresco action on the bank of the Guatapuri River, a popular beauty spot near the city of Valledupar in north-east Colombia.
The footage begins with the naked couple, whose names have not been released, clearly having sex.
The man has one leg in the water and is standing, while the woman is lying on the riverbank with her legs straddling his body.
Eventually, a police officer arrives on the scene, apparently in response to a number of complaints from members of the public.