If your trip to San Pedro de Colalao is all locked in but your travel itinerary is a bit on the empty side, we can give you a few hints and tips.Stop by Carlos Pellegrini Zoological Reserve. It's one attraction you'll find on most travelers' to-do lists. If you still have space on your itinerary, Leocadio Paz Square and Gruta de Lourdes will keep you entertained as well.