Lake Maracaibo is an extension of the Caribbean Sea. It’s too large to be a bay or a lagoon, so it is often considered a lake, especially by the locals of the area. It actually connects to many different rivers in Venezuela, and the Gulf of Venezuela connects to it as well. For the size, it supports quite a lot of people. About a quarter of Venezuela’s population lives in this basin.
This is even more impressive when the fact that there is a canal to get people from the lake to the Gulf, as well as for shipping supplies to the rest of the world from Venezuela. The canal is spanned by a six mile bridge, the longest in the world.