Vale do Pati trek: guide rules, risks and costs

The Vale do Pati is a multi-day walking route inside Chapada Diamantina National Park in Bahia, with treks of up to seven days. Under ICMBio’s 2019 rules, a guide is optional in the park. In practice, group size and guide quality matter a great deal: a complaint to federal prosecutors cited at least five serious accidents in under a year, and there is no set limit on tourists per guide in the Pati.

Why go

The Pati is one of the best-known treks in Brazil. It crosses a deep, green valley ringed by flat-topped mountains and sandstone cliffs, with waterfalls, river pools and long views from the rim. Well-known stops include the climb up Morro do Castelo, the Cachoeirão falls and viewpoints over the valley.

What sets it apart is that people still live in the valley. A few families, descendants of farmers who stayed after the coffee and diamond eras, host trekkers in their homes. You sleep in simple rooms or camp beside their houses and eat home-cooked Bahian food. There are no roads into the valley, so everything arrives on foot or by mule.

Getting there

The trek starts from towns around the national park, which spans Andaraí, Ibicoara, Itaetê, Lençóis, Mucugê and Palmeiras. Common starting points include Guiné, a small village in the Mucugê area, and the Vale do Capão near Palmeiras. Many routes end in Andaraí or loop back to the start.

Lençóis is the usual base for arranging a trek, buying supplies and meeting guides. Most guides and agencies arrange road transfers to the trailhead and from the exit point, so ask whether transport is included when you book. To reach Lençóis, see the Chapada Diamantina guide.

When to go

The drier months, roughly April to October, usually bring the easiest walking and clearer views. The rainy season, roughly November to March, fills the waterfalls but makes river crossings higher, trails muddier and rescues harder. Days are warm year-round, while nights in the valley and on the rim can be cool.

ICMBio can suspend visitation in any area of the park on technical grounds, for example after heavy rain or during fire risk. Ask your guide and ICMBio about conditions in the week before you go. General seasons across Brazil are on best time to visit Brazil.

The guide question

ICMBio Portaria 257 of 13 June 2019 states that hiring visitor guides is an option offered to visitors and is not mandatory in the park. That rule covers the whole park, including the Pati.

The same portaria sets rules for guides who do work. An authorization is personal and non-transferable, and it lasts 12 months. Guiding is limited to areas open to public visitation. Guides on overnight trips must carry a stove and camping gear. The 2019 program was also meant to require first aid training and a test on the park, but it has not been widely put into practice.

Going without a guide is legal, but it carries real risk. Trails split often, signs are few, and phone signal is weak or absent. Most first-time visitors are safer with a guide.

Safety and recent accidents

A complaint filed with the federal prosecutors (MPF) in 2025 cited at least five serious accidents in under a year in the Pati, between September 2024 and May 2025. Several happened when a few guides were responsible for many tourists. Two cases needed helicopter rescues. In one, bad weather grounded the helicopter, a hiker waited about 72 hours, and residents then carried her out by mule over 16 km (10 mi) to Andaraí.

Other points from the 2025 complaint and press coverage:

• There is no official count of visitors to the valley.
• There is no set maximum number of tourists per guide in the Pati. Elsewhere in the region, the Cachoeira do Buracão trail limits groups to 6 tourists per guide.
• Some agencies send two guides with groups of up to 30. Those guides also cook and carry packs of up to 30 kg.
• A national technical standard since 2021 requires adventure tour operators to control the ratio of leaders to participants. ICMBio is responsible for enforcement in the park, and enforcement has been weak.
• Responsible operators set limits of their own, such as 1 guide for up to 5 clients, with a second guide from 6 clients.
• Bahia’s labor prosecutors opened a procedure in 2025 on guide working conditions.

The practical lesson: choose a small group, ask for the guide-to-client ratio in writing, and confirm your guide carries first aid supplies.

How the trek is organized

There are three common ways to cross the valley:

1. Camp at local homes or elsewhere in the valley, with each person paying for their own food.
2. The guide cooks for everyone and the group sleeps at local homes.
3. Pay daily rates to local residents, who provide meals and a bed, while the guide supplies snacks.

The second option is cheapest for agencies but loads the work onto the guide. The third option spreads income to the valley’s families and lets the guide focus on safety.

Local residents are your hosts. Ask before photographing people or their homes, pay them directly for what they provide, and carry your litter out. Lighting fires and leaving litter are banned in the park and at campsites.

What to ask before you book

• How many guests will each guide lead on my dates.
• Does the guide hold a current ICMBio authorization, in their own name.
• Does the guide carry first aid supplies and hold first aid training.
• Who cooks and who carries the food and gear.
• Where you sleep each night and who is paid for the bed.
• What the plan is if someone is injured or the weather turns.

What to pack

Pack light, since you carry it all day. Bring broken-in hiking shoes, a rain jacket, a warm layer for nights, a headlamp, sun protection, a water bottle with a way to treat water, a basic first aid kit and cash for your hosts. Bring a sleeping bag if you will camp, and ask your guide what the homestays provide. For voltage and park background, see the Chapada Diamantina guide.

Costs

Be wary of very cheap offers. In 2025 some agencies sold treks for R$ 1,000 to R$ 1,500 (about US$197 to US$295, checked Oct 2026) by cutting food and carrying costs and sending few guides with large groups. Ask ICMBio for the current rules and a registered local guide association for rates. Park fees across Brazil are on national park fees.

Skip it if

• You have not walked several days with a loaded pack. The terrain is steep and rocky, and some days are long.
• You want a fixed price before you leave. Costs depend on your guide, group and route.
• Your agency will not tell you the group size per guide.
• You cannot accept that help is far away. Rescues can take hours, and in bad weather days.
• You want comfort at night. Beds in the valley are simple, and showers may be cold.

For the wider region, see Bahia beyond Salvador.