National park · Argentina
Río Pilcomayo National ParkParque Nacional Río Pilcomayo
Enter Río Pilcomayo National Park for ARS 400 (check) and drive 2 h from Formosa; hike the flat grassland trail in June‑August for dry conditions; stay in Laguna Blanca.
- Source checked
- A source and a date are on record: we read it from an official or published page. Not yet confirmed on the ground.
- Field checked
- Someone checked it on the ground, with the date shown.
- Plan calculated
- Worked out by Voykit from its own data (times, distances, budgets). A calculation, not a measurement.
Unknown times stay unknown. How we verify
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Map to the park
Add your hotel to get directions from it. · stays in this browser; shared with the pocket card.
Area
500 km² (193 sq mi)193 sq mi (500 km²)
approximate
Established
1951
Best months
Jun–Aug
UNESCO
None
Rules in force · 9Above 2,500 m (Bogotá, Quito, Cusco, La Paz) keep the fir…
- South America ↗Above 2,500 m (Bogotá, Quito, Cusco, La Paz) keep the first day light; sleep lower where you can (Sacred Valley before Cusco) and descend if headache comes with vomiting or confusion.
- South America ↗A yellow fever certificate is required on arrival in French Guiana, and asked for on some routes into Bolivia, Paraguay, Suriname and Guyana, or when arriving from Amazon areas — vaccinate at least 10 days before travel and carry the card.
- South America ↗Overnight buses are the norm in Argentina, Chile and Peru, but pick top-tier companies and keep valuables on your body; on-board thefts from overhead racks are the common loss.
- Argentina ↗Check entry rules for your passport with Argentina's National Migration Directorate (Migraciones) or an Argentine consulate before booking.
- Argentina ↗Since April 2025 the official, MEP and street ('blue') dollar rates sit within a few percent of each other; a foreign card is usually the best-value way to pay, while ATM withdrawals carry high fixed fees. Rules have changed often — check before you fly.
- Argentina ↗Patagonia (El Calafate, El Chaltén, Ushuaia) is a November–March trip; in winter many services close and hiking is limited.
- Argentina ↗Since August 2026 non-resident foreigners must show insurance or pay for non-urgent care at nationally run public hospitals, and Buenos Aires City, Mendoza, Salta, Jujuy and Santa Cruz charge visitors for scheduled care; emergencies are still treated. Travel with medical insurance — check the current rules.
- Chaco ↗Plan outdoor hours before 10:00 and after 17:00 from November to March; midday heat is the main risk.
- Chaco ↗Carry cash for the interior; card readers are unreliable outside Resistencia.
At a glance
- Country
- Argentina
- Area
- 500 km² (193 sq mi)193 sq mi (500 km²)
- Approximate; official source gives only a rough size (check).
- Established
- 1951
- Best months
- Jun–Aug
- Permits
- For some areas
Río Pilcomayo National Park offers flat grasslands that flood seasonally, creating dynamic wetlands rich in waterbirds, caimans and rare mammals; the dry winter months provide the best conditions for short self‑guided walks and birdwatching, while a modest entry fee grants access to the park’s trails, lake, and official camping area.
Decide
Why go, which months, and what lives here when
At a glance
Status
- Ramsar wetlandDesignated Ramsar wetland site.
Size and age
500 km² (193 sq mi)193 sq mi (500 km²) · national park since 1951
Approximate; official source gives only a rough size (check).
Why go
- Flat grasslands that flood seasonally create dramatic wetland scenery.
- Large numbers of waterbirds and rare mammals such as maned wolf and aguará guazú.
When to go
- JanGo
- FebGo
- MarGo
- AprGo
- MayGo
- JunBest
- JulBest
- AugBest
- SepGo
- OctGo
- NovCaution
- DecCaution
- JanWarm, but some rain.
- FebWarm, occasional storms.
- MarTransition to drier season.
- AprDrying, good birdwatching.
- MayCooler, less rain.
- JunDry winter, optimal for trails.
- JulDry winter, comfortable temperatures.
- AugDry winter, low humidity.
- SepStart of wet season, still good.
- OctIncreasing rain, some flooding.
- NovRainy, trails may be muddy.
- DecRainy, high humidity.
Wildlife and nature calendar
| What | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Broad‑snouted caiman and yacare caimanAll year | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Maned wolfJun–Dec | no | no | no | no | no | yes | yes | yes | yes | yes | yes | yes |
| Aguará guazú (endangered fox)Jun–Dec | no | no | no | no | no | yes | yes | yes | yes | yes | yes | yes |
| Rheas, seriemas, over 100 bird speciesAll year | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
Arrive & move
Getting in, how the park is divided, and where things are
Show 3 sectionsHideHow to get there, Zones and sectors, Sketch map
How to get there
From Formosa
Drive north on RP‑2 about 140 km (87 mi) to Laguna Blanca; park gate at Estero Poi.Drive north on RP‑2 about 87 mi (140 km) to Laguna Blanca; park gate at Estero Poi.
2 h
From Resistencia
Bus to Formosa (≈3 h) then follow above route.
≈5 h
Zones and sectors
| Zone | What is there | Access |
|---|---|---|
| Estero Poi entrance | Gate, visitor information, parking. | Open with entry ticket. |
| Laguna Blanca area | Permanent lake, birdwatching points, walking trails. | Open; some trails need guide in wet season (check). |
| Grassland floodplain | Seasonally flooded plains, wildlife observation. | Accessible on foot; avoid during high water. |
Sketch map
Take the points offline
3 points as a GPX waypoint file, plus a plain-text list of coordinates. Save it while you have signal: maps apps show the points without a connection.
Coordinates from official park website; gate location approximated from map.
See & do
Caves, trails and wildlife, with how hard each is and whether it needs booking
Show Top experiencesHide
Top experiences
Practical
Fees, permits, rules, where to sleep and what can go wrong
Show 8 sectionsHideEntry fees and permits, Park rules, Where to stay, Safety, Accessibility, Visiting lightly, Questions people ask, Related
Entry fees and permits
| Item | Range | Per | Note |
|---|---|---|---|
| Park entry | ARS 400 | person | Official fee from park authority (check). |
Ranges, not quotes: fees change without notice. Check with the park or your operator · checked Sep 2026.
Park entry permit or guide
Park rules
- Fires
- Not allowed; use designated cooking areas only.
- Camping
- Only in the official camping area near Estero Poi; permits not required but must follow site rules.
- Motor vehicles
- Off‑road driving prohibited; stay on marked roads and trails.
- Wildlife interaction
- Do not feed or approach caimans, foxes or birds.
Where to stay
Near the park
Hotel Guaraní
Moderate hotel in Laguna Blanca with Wi‑Fi and restaurant.
Near the park
Camping area
Electricity and hot‑water showers at Estero Poi.
Safety
Flooded trails medium
Caiman encounters low
Heat in summer medium
How much daylight do you have?
Time out
Finding the local time zone…
Times are local to the spot (zone loading). The half-hour margin is our rule of thumb, not an official figure; light fades earlier in forest or under cloud. Carry a headlamp on any route that could run late.
Accessibility
- Parking and visitor centre at Estero Poi are wheelchair accessible.
- Trails are flat but may become muddy in wet season; limited for limited mobility.
Visiting lightly
- Stay in locally owned lodging in Laguna Blanca.
- Use the official camping site with waste facilities.
- Do not disturb wildlife; follow park signage.
Questions people ask
How much does it cost to enter Río Pilcomayo National Park?
The entry fee is ARS 400 per person (check official source for current rate).
What are the best hikes in Río Pilcomayo National Park?
The flat grassland trail (2–3 h) and the Laguna Blanca lakeside walk (1–2 h) are the main marked routes; longer routes need a guide in wet season.
When is the best time to visit Río Pilcomayo National Park?
June to August offer dry weather and comfortable temperatures, making trails easy and wildlife easy to spot.
Can I camp inside the park?
Yes, at the official camping area near the Estero Poi entrance; facilities include electricity and hot‑water showers.
Do I need a guide for any activities?
A guide is required for longer off‑road routes during the wet season; the short trails are self‑guided.
Deep dive
Every source; fees and rules change, so check before you go
Show the detailsHide
Ask about Río Pilcomayo National Park
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