SINAC Costa Rica does not sell park tickets the same way everywhere. Manuel Antonio requires an online purchase through SINAC’s portal before you arrive. Arenal sells only at the gate on the day of your visit and does not take cash. Corcovado runs on email and bank transfer. Santa Rosa books through the Guanacaste Conservation Area’s own site. If you book every park the same way, you will hit at least one gate with the wrong ticket or none at all, so here is which route applies where.
✓ Pros
- Official channels make it easier to verify current park-specific requirements before paying.
- Visitor caps and scheduled entry help limit pressure on protected sites.
✗ Cons
- A single itinerary can require several accounts, payment methods or reservation channels.
- A booking can be difficult to recover when plans shift or weather disrupts a visit.
Booking through SINAC has real advantages. You pay official pricing with no reseller markup, timed entry slots spread visitors out across the day, and capacity limits protect fragile sites. The downsides are just as concrete. Arrival windows are rigid, bad weather does not earn you a refund, the process changes from park to park, and if the portal fails, your only troubleshooting route is email.
What SINAC Is and What It Oversees
SINAC (Sistema Nacional de Áreas de Conservación) is Costa Rica’s National System of Conservation Areas, the government body that manages the country’s national parks and protected areas. It sits under the Ministry of Environment and Energy (MINAE) (11).
SINAC divides the country into 11 Conservation Areas (18). Each area administers the parks and reserves inside its territory, and booking rules vary from one area to the next. Manuel Antonio, Poás and Corcovado fall under different Conservation Areas. The Guanacaste area runs its own booking site, and the Osa area takes reservations by email (17). Most of the others use the central portal.
SINAC handles four broad jobs for visitors:
- online reservations and ticket sales for listed parks
- park-specific operating information, including hours, closures and entry rules
- management of protected areas and their visitor capacity
- contact channels for payment problems and emergency rescheduling
Broad administrative overviews of SINAC are easy to find. Practical booking guidance is not. Knowing that SINAC oversees the parks does not tell you how to get into a specific one.
SICORE: The Portal Behind Reservations
SICORE is SINAC’s online services portal at serviciosenlinea.sinac.go.cr, and most SINAC reservations go through it (11). You choose the Conservation Area, then the park, the date and an arrival time slot. Time slots are usually published about four weeks ahead, and each slot has a limited visitor capacity per hour (11). For popular parks in high season, that four-week window is your booking deadline in practice. The day slots open is the day you should be ready to book.
Booking SINAC Costa Rica Tickets Online Through SICORE
The SICORE portal sells Costa Rica national park tickets online for 11 named protected areas, and you need card details and full identity information for every visitor before you start. The portal’s FAQ lists these areas as available for online booking:
- Poás Volcano
- Manuel Antonio
- Irazú Volcano (Crater and Prusia sectors)
- Braulio Carrillo (Volcán Barva sector)
- Tapantí
- Tortuguero
- Isla San Lucas
- Chirripó
- Tenorio
- Rincón de la Vieja
- Carara
As of October 2026, SINAC’s reservations page and the portal’s availability menu also list Los Quetzales (13)(17).
Rincón de la Vieja is a special case. It sits inside the Guanacaste Conservation Area, and one Costa Rica guide sends it to that area’s own reservation site at reservaciones.acguanacaste.ac.cr (11). SINAC’s reservations page, however, lists Rincón de la Vieja under SICORE and keeps the Guanacaste site for Santa Rosa (17). Before paying for Rincón de la Vieja, check which system currently shows live availability so you do not end up booking twice.
Generic travel guides tend to say “book in advance online” and stop there. Two rules work better. First, buy only through SINAC’s official channels, never from resellers (12). Second, treat SINAC’s own current pages as the final word on both booking procedure and price, not any third-party guide (11)(12). Fees, hours and daily caps can change at short notice (12).
Information to Have Ready Before You Book
SICORE asks for the following for every reservation (13):
- the park, plus your visit date and time slot or sector
- the number of visitors and their categories (for example, adult, child, resident, foreign)
- each visitor’s full name
- each visitor’s identification number (passport number for most foreign visitors)
- each visitor’s country of origin
- a debit or credit card
Check every name and ID number before you pay. SINAC says it cannot currently change the reservation name or ID number after booking, because entry is personal (13). If you do mistype an ID number, the FAQ says to write to the contact addresses listed in the reservation’s terms and conditions (13).
The portal requires an account. You register with a username and email address on serviciosenlinea.sinac.go.cr, and keep both handy, because SINAC asks for them if anything goes wrong (13).
Browser Settings and Payment Troubleshooting
SINAC recommends Google Chrome or Microsoft Edge in Incognito or InPrivate mode for SICORE (13).
Allow pop-ups for the portal before you reach checkout. SINAC says the pop-up window is what lets your bank’s 3DS payment validation run (13).
If something breaks, work through these steps in order (13):
- Portal error: clear your browser cache, then email screenshots or a screen recording, along with your account username and associated email, to reservaciones.sinac@sinac.go.cr.
- Payment declined or failed: contact your card issuer, which is where SINAC’s FAQ sends card problems.
- Charged but no reservation, or charged twice: request a chargeback through your card issuer.
Reserving Tickets for Poás Volcano and Checking Its Status
Poás Volcano tickets are booked through SICORE using the standard steps above: choose the Conservation Area, select Poás, then pick a date and arrival slot. No permanent answer to “Is Poás open?” exists, because SINAC says protected areas may close temporarily when weather or infrastructure creates a safety risk (13), and an active volcano is exactly where that happens.
Getting there: Poás is about an hour and a half from San José, and one guide calls it the easiest active volcano crater in Central America to reach (12).
Best month: Costa Rica’s dry season runs from mid-December to late April (19). Cloud can still hide the crater on any day, which is why the closure and refund rules below matter.
Check Poás status in two places. Look at the SICORE booking calendar for open dates, and check SINAC’s park notices in the days before you travel. If SINAC orders an emergency closure on your reserved date, email SINAC to request rescheduling. Weather alone does not qualify you for a refund, even if clouds hide the crater completely (13).
Parks With Different Booking Rules
Arenal, Corcovado, Isla del Caño and Santa Rosa do not follow the standard SICORE process, and arriving with the wrong expectation can cost you the visit. A traveler who reads only a generic advance-booking guide could arrive at Arenal expecting the online portal to work, and Colibrí’s guide flags Arenal as an exception to the main system (11). Before you follow any “book online in advance” advice, confirm your park is not one of these exceptions.
Arenal is the clearest case: no online sales, no advance slot, card only at the gate (14). A traveler who assumes every park works like Manuel Antonio’s portal booking will find out otherwise the moment they reach the entrance. The same goes for Corcovado’s email-and-transfer process and Santa Rosa’s separate Guanacaste site. None of these exceptions show up if you stop at “book online in advance” - you have to check each park on your route individually.
For parks that are neither on the SICORE list nor among the exceptions below, SINAC says tickets may be bought at the park ticket booth by credit or debit card (13). Cahuita’s Playa Blanca sector runs on a voluntary donation paid at the sector’s ticket office rather than a fixed ticket (11).
Arenal: No Online Sales and No Cash at the Gate
SINAC’s Arenal Volcano National Park page says online sales are unavailable. Tickets are sold only at the park booth on the day of your visit, and cash is not accepted (14). Bring a working credit or debit card. A wallet of colones or dollars will not get you in.
Since you cannot reserve ahead, you also cannot lock in a time slot. Arriving early is the only way to plan around crowds.
Getting there: Arenal rises above La Fortuna, and most visitors combine the park with hot springs and a night in town (12).
Best month: the dry season runs from mid-December to late April (19). Cloud is the variable at Arenal, and mornings are the better bet for seeing the cone (12).
Corcovado and Isla del Caño: Email and Bank Transfer
Corcovado National Park and Isla del Caño Biological Reserve take reservations by email, and SINAC gives two addresses for them: the SICORE FAQ names reservaciones.pnc@sinac.go.cr (13), while SINAC’s reservations page lists acosa.reservaciones@sinac.go.cr (17). Payment follows afterward by bank transfer (11)(13). International bank transfers can take several business days, and your bank may charge fees on its side. Start this process well before your trip and keep the email thread as proof of your reservation.
Getting there: Corcovado sits on the Osa Peninsula, usually reached by boat from Sierpe to Drake Bay or by small plane (12). A certified guide is standard there, and in practice you need one (12).
Best month: the dry season runs from mid-December to late April (19). At the peak of the green season, Visit Costa Rica warns that some hotels and attractions may close completely, particularly in the south of the country (19).
Santa Rosa’s Separate Booking Site
Santa Rosa National Park belongs to the Guanacaste Conservation Area, which takes bookings through reservaciones.acguanacaste.ac.cr instead of SICORE (11). Your SICORE account will not carry over, so expect to enter visitor details again on that site.
Entry Rules, Ticket Limits and Refunds
Costa Rica national parks entry depends on three rules once you hold a ticket: a per-visitor purchase limit, identification that matches the booking, and a strict no-refund policy for changed plans or bad weather.
SICORE caps each personal account at 4 tickets per transaction for Chirripó, 6 for Manuel Antonio, and 10 for other listed areas.
Ticket Purchase Limits by Park
SICORE caps the number of tickets one personal account can buy in a single transaction (13):
- Chirripó: 4 tickets
- Manuel Antonio: 6 tickets, and one transaction per user per day
- All other listed areas: 10 tickets
A group of eight visiting Manuel Antonio cannot book everyone in one transaction. A second traveler needs their own SICORE account to book the rest of the group. Plan this split before booking day, so you are not creating an account while slots fill up.
Identification and Non-Transferable Reservations
Bring the same ID you entered at booking, which for most foreign visitors is a passport. Each ticket is tied to a name and ID number and cannot be transferred. If a traveler drops out, nobody can take their place on that ticket (13). Manuel Antonio tickets are also valid for one entry only, so leaving the park mid-visit ends your day there (16).
Arrive within your selected time slot. Slots exist to manage visitor flow (13). If you are delayed, contact the protected area using the email in your ticket terms before your slot passes, rather than turning up late and hoping for the best.
Refunds, Closures and Free Admission Days
SINAC tickets are not refundable if your plans change or weather limits visibility. The only recovery path is an emergency closure ordered by SINAC, such as a safety closure for weather or infrastructure. In that case you can email SINAC to request a new date (13). If your trip itinerary is uncertain, book later rather than earlier, while keeping an eye on the four-week slot window.
SINAC’s FAQ lists two free-admission exceptions (13):
- August 24, National Parks Day: free admission
- The third Wednesday of each month: free for residents and nationals only
The third-Wednesday rule covers residents and nationals only, so it does not lower a foreign visitor’s ticket. Confirm the conditions with the specific park before relying on free entry.
Manuel Antonio: Hours, Cost and Trail Time
As of October 2026, SINAC lists Manuel Antonio National Park as open Wednesday through Monday from 7:00 a.m. to 3:00 p.m. and closed every Tuesday, with tickets available only through its online portal (15). There is no ticket counter at the entrance, and turning up without a reservation means you will be turned away (12).
Cost: as of October 2026, SINAC’s park page lists admission, tax included, at $18.08 for a non-resident adult over 12 and ₡1,808 for a resident adult (15). Confirm the figure in SICORE at checkout, since fees can change at short notice (12). Some visitors also hire a private naturalist guide, which is a separate cost from entry and often a larger one (12).
The real constraint: in high season Manuel Antonio sells out, and the daily cap, not the price, is what stops you (12). The cap itself has moved several times: the government raised it to 2,501 visitors a day in May 2024 (20), and SINAC’s park page does not publish a current figure (15). If your dates are fixed, book as soon as slots appear.
Trail time: SINAC’s park page gives no walking times; it says a short visit covers several trails through primary forest (16). The park’s operating hours set the outer limit, and one guide reads 3:00 p.m. as the last entry window, with the park closing at 4:00 p.m. (12). As of October 2026, SINAC lists the Punta Catedral trail as temporarily closed (16). The time sink is stopping to spot sloths and monkeys and swimming at the park’s beaches. Since a ticket allows one entry only, plan around the park’s food rules: SINAC does not allow food onto the beaches and trails, food is sold and eaten only in the concession area, and drinking fountains on the main trails let you refill a reusable bottle (15).
Getting there: Manuel Antonio sits in the Quepos canton on the central Pacific coast, about 157 km (97 miles) south of San José, and its main entrance is 7 km (4.3 miles) from Quepos (16). The park has no parking, and in high season the only road between Quepos and Manuel Antonio village is very busy (15).
Best month: the dry season runs from mid-December to late April (19), and that is when high-season dates sell out (12). SINAC says September and October, in the rainy season, are the park’s quietest months, and recommends arriving early then (15).
At the gate, show the passport or ID that matches your booking (16).
Frequently Asked Questions
- What does SINAC do for visitors to Costa Rica's protected areas?
- SINAC manages protected areas and provides park-specific access information; SICORE sells tickets only for parks using that portal.
- Where can I find the current Manuel Antonio admission price?
- As of October 2026, SINAC's Manuel Antonio page lists $18.08 for a non-resident adult over 12, tax included; check the price shown in SICORE at checkout before paying.
- Is there an official walking-time estimate for Manuel Antonio's trails?
- SINAC's park page gives no walking times; plan around the opening hours and allow time for wildlife stops and beach visits.
- How can I check whether Poás Volcano will be open on my visit date?
- Check both the SICORE calendar and SINAC's park notices shortly before travel, since an available booking does not rule out a later closure.
- What do I need to create a SINAC online account?
- Register on serviciosenlinea.sinac.go.cr with a username and email address, then retain both details for any booking-support request.
- Can I get a refund if weather changes my plans?
- Weather and changed plans do not qualify for refunds; after a SINAC-ordered emergency closure, contact SINAC to request rescheduling.
- What should I do if I am running late for my reserved entry slot?
- Contact the protected area using the email in your ticket terms before the slot ends; late arrival without notice may put entry at risk.
- Should I bring cash to pay park entry fees?
- Bring a credit or debit card for gate sales; cash is not accepted at Arenal, and card payment is the stated method for other gate-sale parks.
Final Check Before You Pay
SICORE covers most parks travelers visit, but not all of them. Arenal sells only at the gate and takes cards only. Corcovado and Isla del Caño reserve by email and bank transfer. Santa Rosa uses the Guanacaste site. For every park on your route, confirm which channel applies, enter every name and ID number exactly as it appears on the traveler’s passport, and plan around the purchase limits. In the week you travel, recheck the official SINAC page for each park you are visiting. Closures, caps and prices can change, and SINAC’s own pages are the only source that will reflect it.
