Approximately 400m on your right after the Central Australia exit is a kind of wildlife-park-meets-country fair with labeled examples of Cuba's typical flora and fauna. The highlights of this strangely engaging place are the coffee (some of the best in Cuba and served with a sweet wedge of sugarcane), the bull-riding and the hilarious if slightly infantile games of guinea-pig roulette overseen with much pizzazz by the gentleman at the gate.
It's the only place in Cuba – outside the cockfighting – where you encounter any form of open gambling.