The Ribeirão do Saci is a watercourse in the municipality of Antonina, within the state of Paraná, Brazil. The primary known access point for visiting the associated natural feature, the Cachoeira do Saci (Saci Waterfall), is on foot. The journey involves a walk along a dirt road, with the round trip taking approximately two hours. This indicates a remote and undeveloped access, requiring a significant hike to reach the water body. There are no facilities or amenities directly mentioned for paddlers at the site. The overall character of the experience is defined by this trekking access, suggesting a natural and potentially isolated environment.