It is a 1h15 drive from Lençois (we rented a car from salvador). We did the hike without guide. The beginning of the hike is quite clear. The trail goes up for like 40 min, then you arrive on a platform, there it is a bit tricky to find the trail. We downloaded maps.me upfront, so if you go without guide make sure you do that or follow someone with a guide during the hike. The village where you should go is called capao (you have to drive via palmeiras) at the beginning of the hike, you will need to register (you can get a guide there). The entrance is free. The hike in total took us 5 hours. The views are well worth it! Best in chapada! Even when they say the waterfall will be dry. Go!