Greetings @wilfredocav, riding in the barges is very fun, you have the opportunity to see the scenery and fish, years ago with a friend, we toured the Caicarita lagoon in Curiara, it was a nice experience full of adrenaline he,he 😂.
It's true Bolivar state is big, it takes more than a day to tour it, also if you go to Moitaco and the upper Caura, you have to combine carretras and navigation.
Happy monday!