Yes, Manu National Park is known for having a healthy population of jaguars, although spotting them can be difficult due to their shy and secretive nature. However, jaguar sightings are more likely during the dry season, which runs from June to October, when water levels are lower, concentrating the animals around bodies of water. Additionally, jaguars are in their mating season during these months, which increases their activity and mobility, making them easier to observe while hunting or moving around their territory. Open areas, such as riverbanks and sandy beaches, are the best places to try to see them, as they often use these spaces to move or rest.