Bolivia's Wild East: Jaguars, Cloud Forest and Lost Missions
Duration
11 Days
From
$4,200
Group
Max 10 Guests
Difficulty
Moderate
Bolivia
Bolivia's Wildest Dry Forest and Jaguar Stronghold
Location Overview
Bolivia's Wildest Dry Forest and Jaguar Stronghold
Larger than Belgium and home to more than a thousand jaguars, Kaa-Iya del Gran Chaco is Bolivia's biggest national park and the largest single protected area in the entire Gran Chaco. Its 34,411 square kilometers of thorn forest, salt flats, and seasonal wetlands shelter the endemic Chacoan peccary, a living fossil species rediscovered alive in 1975, alongside giant anteaters, tapirs, pumas, and Bolivia's only protected population of Chacoan guanaco. Created in 1995 through the advocacy of the Guaraní-Isoseño people and co-managed with their Capitanía del Alto y Bajo Izozog, Kaa-Iya was the first national park in the Americas established at indigenous initiative. Camera traps along the park's pipeline corridor have documented some of the densest jaguar populations ever recorded in dry forest.
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Handcrafted expeditions into the remote corners of Kaa-Iya National Park, led by local experts and designed for the curious.
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Bolivia's Wildest Dry Forest and Jaguar Stronghold
Kaa-Iya National Park · 01 / 03
Chapter 01 / 03
Covering 34,411 square kilometers of southeastern Santa Cruz Department, Kaa-Iya del Gran Chaco is Bolivia's largest national park and the single biggest protected area anywhere in the Gran Chaco ecoregion, which spans four South American countries. The terrain is almost entirely flat alluvial plain, ranging from 100 meters above sea level up to 839 meters at Cerro San Miguel, and transitions through four distinct Chaco landscapes: riverine forest along the Río Parapetí, the dense thorn forest of the alluvial Chaco, a transitional zone of semi-humid woodland, and the Chaco-Chiquitano transition forest along the northern edge.
The park also encloses Ramsar-listed wetlands. The Bañados del Isoso, a seasonal marsh covering more than 615,000 hectares, is fed by the Río Parapetí, which vanishes underground for six months each year before migrating north toward the Amazon basin. Palmar de las Islas and the Salinas de San José add gleaming salt flats to the landscape. Together with the neighboring Otuquis National Park, the Ñembi Guasu indigenous conservation area, and Paraguay's Defensores del Chaco across the border, Kaa-Iya anchors one of the largest intact dry-forest corridors remaining in the tropics.
From the Journal
Field notes, cultural encounters and trail dispatches from our guides and travellers in Kaa-Iya National Park.
Surveys estimate over 1,000 jaguars in the Gran Chaco Jaguar Conservation Unit, the largest known population anywhere on the planet. Five wild cat species share a single park larger than Belgium. Camera traps record them stalking tapirs at dawn, drinking at waterholes in the midday blaze, and dragging caiman carcasses through reed margins at dusk. This is the kingdom of the jaguar, and almost nobody knows it exists.
Is it safe to travel to Bolivia in 2026? An honest look at the current protests, crime and scams, altitude sickness, and health risks, plus the sensible precautions that handle nearly all of it.
We are pleased to announce that EcoVoyager has partnered with Asociación Armonía, Bolivia’s leading bird conservation organization and the country’s BirdLife International partner.
A thousand kilometers of high plateau above 3,500 meters, running from Lake Titicaca in the north to the Argentine border in the south. Three distinct regions: Aymara communities and sacred islands, volcanic emptiness and vicuña herds, and the mineral lagoons and salt flats that everyone has seen in photographs. Most travelers see one. Here’s what a proper trip through all three looks like.
Where the Amazon, the Andes, and the dry Chaco collide: prehistoric giant ferns, jaguars and spectacled bears, and one of the richest bird lists on Earth. Here is how to experience Bolivia’s wildest park, and the crucial difference between its two sides.
Plan Your Journey
Dry season jaguar tracking in the Gran Chaco
The prime window for Kaa-Iya. Rainfall drops below 20mm per month and dirt roads firm up across the park interior. Wildlife concentrates at shrinking waterholes and along the pipeline corridor, making jaguar tracking, Chacoan peccary sightings, and giant anteater encounters dramatically more productive than in any other season. Mornings are cool, afternoons warm to the low 80s, and nights across June and July can drop to 40°F when surazo cold fronts push north from Patagonia. Skies are clear for stargazing and August brings peak mammal concentration at the last standing water.
Hot days, mounting dust, and fire-season smoke, but also the best stretch for multiple jaguar sightings in a short trip. By late September the park's largest mammals have retreated to a handful of waterholes, and determined trackers can often locate tapir, puma, and jaguar at the same lagoon in a single morning. Interior afternoons climb past 100°F and the risk of Chaco fires from surrounding agricultural burns is real. Ecovoyager shifts schedules to pre-dawn and late-afternoon drives with midday rest at Tucavaca camp.
Heavy rains and extreme heat combine to make Kaa-Iya effectively inaccessible. Monthly rainfall climbs past 100mm through December, peaks above 140mm in January, and the Río Parapetí floods much of the southern park. Access roads become impassable mud, ranger camps reduce operations, and wildlife disperses across a rehydrated landscape where tracking becomes very difficult. Ecovoyager does not run Kaa-Iya expeditions during the wet season; travelers interested in Bolivia during these months are better directed to Madidi or the Altiplano.
Annual Overview
| Jan Off-season | Feb Off-season | Mar Off-season | Apr Off-season | May Peak | Jun Peak | Jul Peak | Aug Peak | Sep Good | Oct Good | Nov Off-season | Dec Off-season |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 87 | 86 | 85 | 83 | 80 | 79 | 80 | 84 | 88 | 91 | 91 | 89 |
Travel Logistics
Choose your route. Every option arrives at the same place.
The paved Ruta 4 highway runs 260 kilometers east from Santa Cruz de la Sierra to San José de Chiquitos, a Jesuit mission town founded in 1698 and the main gateway to the northern park entrance. Ecovoyager's private 4x4 transfers collect guests from Santa Cruz hotels or Viru Viru International Airport, breaking the drive for lunch and a short visit to the stone mission church.
From San José, 85 kilometers of unpaved road crosses the Serranía San José cattle country into the northern edge of the national park, where the Tucavaca ranger station serves as base camp for all park operations. The route is rough, sandy in places, and requires a dedicated 4x4 vehicle; Ecovoyager provides reinforced expedition transport with spare tires and satellite communication.
Once inside the park, all wildlife tracking happens along the dirt service road that runs parallel to the Bolivia-Brazil gas pipeline, linking Tucavaca to the Izozog pumping station 120 kilometers south. Ecovoyager's dedicated expedition 4x4 allows open-sided viewing, with daily drives scheduled before dawn and again in the late afternoon when jaguar and peccary activity peaks.
The paved Ruta 4 highway runs 260 kilometers east from Santa Cruz de la Sierra to San José de Chiquitos, a Jesuit mission town founded in 1698 and the main gateway to the northern…
From San José, 85 kilometers of unpaved road crosses the Serranía San José cattle country into the northern edge of the national park, where the Tucavaca ranger station serves as base camp for all…
Once inside the park, all wildlife tracking happens along the dirt service road that runs parallel to the Bolivia-Brazil gas pipeline, linking Tucavaca to the Izozog pumping station 120 kilometers south. Ecovoyager's dedicated expedition…
Why Travel with Us
Kaa-Iya sits 350 kilometers east of Santa Cruz de la Sierra, reached by paved highway to the Chiquitano gateway town of San José de Chiquitos and then by 4x4 along the dirt pipeline road that bisects the park. Ecovoyager coordinates permits with SERNAP and the Guaraní-Isoseño co-management authority, pairs every expedition with a certified Bolivian biologist guide, a driver, and a cook, and bases groups at the Tucavaca ranger camp for dry-season tracking of jaguar, Chacoan peccary, and giant armadillo. Trips run May through early December; roads become impassable in the wet months.
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