Is Poas Volcano National Park in Costa Rica worth visiting?

The Poás Volcano National Park is one of the natural attractions in Costa Rica you can’t miss. This volcano has one of the largest craters in the world with a bright blue-green lagoon at the bottom. From the crater rim of Poas volcano, you’ll have a beautiful view of this natural wonder. Visiting Poas Volcano is definitely worth it as you can walk right up to the crater rim lookout and see the natural wonder up close. Read everything you need to know in this complete guide before visiting Poas Volcano National Park. 

About Poas volcano  

Póas Volcano National Park was established in 1955 and boasts an approximate land area of 1200 hectares. The Poas volcano is at 2697 meters above sea level (8,848 ft) and is a so called stratovolcano with several eroded calderas, cones, and two crater lakes at or near its summit.

Fun fact is that the crater of Poas volcano is the second largest open volcanic crater in the world with 1.5 kilometers in diameter (0.9 miles) and is 300 meters deep (900 feet). At the bottom of this crater is a blue-green lagoon called Laguna Caliente, which you can see from the crater rim. The bright blue-green colors of the lake are a beautiful contrast against the grey, orange rocks. The water in this lagoon has a pH level close to zero making the liquid acidic and toxic. Sometimes boiling sulphurous gases are being released from the lake which is also directly the reason why it’s not allowed to stay longer than 20 minutes at the crater rim. 

Previously Laguna Caliente even blew the acid liquid hundreds of meters high up in the air like a geyser, producing acid rain and fog. This resulted in completely wiped-out vegetation near the summit of Poas. 

There is actually even another crater lake but unfortunately the trail to this part of the national park is closed since 2017 until further notice. The given reason is to protect visitors against the danger of exposure to noxious fumes and gases. 

Opening time and entrance fee Poas Volcano National Park

Poás Volcano National Park is everyday open (including holidays) from 7 AM until 2 PM (last entrance is at 1.20 PM. You have to pre-book your tickets in advance via the SINAC website where you can choose from different time slots. Take into account that you can only stay at the crater rim for 20 minutes. 

The entrance fee to Poas Volcano is $15 for for adults (13+ years) who are foreigners. For Costa Rican residents the entrance fee to Poas Volcano is 1000 colones.

There is also a separate parking fee at Poas national par which is 2000 colones and must be paid cash upon arrival.

How to buy Poas volcano tickets – Entrance fee Poas volcano

Before you depart to visit Poas volcano it is important to know that you have to purchase your tickets in advance online. Via the official website of Sinac you can book and pay for your Poas entrance ticket online in advance. The entrance fee to Poas Volcano of $15 which you can pay by credit card.

Instructions on how to book your Poas volcano tickets

To book your tickets at the SINAC government website, you must first create an account on the website. When you are logged in, click ‘buy’ and select ‘online reservation’. Then you can select the National Park in Costa Rica you want to visit. In this case select ‘Parque Nacional Volcán Poas – Sector Crater’. Then you can choose the date and time you want to visit Poas volcano.

You will then be taken to the payment page where you can enter your credit card details. Make sure to have your credit card ready because you have 10 minutes to complete the transaction. If you take longer to make the payment, you will have to make the whole booking again. Once you’ve completed the payment, a booking confirmation will be emailed to you. Make sure to bring this to show the park ranger at the entrance. They will check the verification number from the reservation to check your booking in the system.

How to get to Poas Volcano National Park

The road to the entrance of Poas Volcano National Park is mostly highway and well-signed. From San José you have to take the Pan American Highway west to Alajuela. Follow this road until it becomes Route 130 to Itiquis and Fraijanes where you will already see the signs for Poas National Park. From San Jose it it a little more than an hour drive. The Poas or Bajos del Toro area makes a great stop on your way to La Fortuna from the Central Valley. You can also perfectly combine a visit to Poas volcano together with a visit to the La Paz waterfall gardens which are only 30 minutes away.

The best way to get around in Costa Rica in general if with a rental as public transportation is not always going on time or directly to the entrance of attractions. 

What is the best time to visit Poas volcano? 

The best time of the day to visit Poas volcano is in the early morning because clouds usually roll in later in the morning. The best months to visit Poas volcano are January through May as these are the dry months. Rainy season in this area begins in May until November, December. 

As always, the weather can change quickly and you are at a high elevation on Poas volcano. So bring an extra jacket for when the clouds roll in and temperatures drop. 

What to expect when visiting Poas Volcano

Visiting one of the active volcanoes in Costa Rica is a must-do. And luckily, volcano Poas and Irazu are the two easiest volcano National Parks in Costa Rica giving access to their active crater rim. 

The volcanic activity of Poas is well monitored, as well as the sulfurous gases coming from the acid crater lake. Previoulsy the volcano was much more active and people were limited to a 20 minute time slot to visit the volcano. Luckily this is not the case anymore since 2024.

The trail to Poas volcano crater rim 

The only trail that is consistently open in Poas National Park is the short 500-meter (0.3 mile) paved walking path. After not more than 10 minutes walking from the parking lot you will get to a large observation deck that overlooks the rim of the crater and Laguna Caliente, the blue-green lake inside the crater. There are several viewpoints but it’s unfortunately not possible to walk around the crater rim. You can only observe Poas crater from one side. 

Possibly you will notice the distinct smell of sulfur, but don’t worry, gas levels are being monitored daily and Poas volcano is not that active anymore since 2024. There are always park rangers around who will keep an eye out for the safety of the visitors.  

What to prepare when visiting Poas volcano

Find here a short summary and some additional information on clothing to be well-prepared for a visit to Poas volcano. 

• Wear comfortable shoes, sneakers or hiking shoes would be the best. We wouldn’t recommend flip-flops.
• Bring sunscreen or a hat on sunny days.
• The weather can change quickly and clouds can roll in fast at this height. To be sure you can bring an extra jacket to be well prepared for sudden rain or cooler temperatures.
• Keep in mind that it is not guaranteed that you will have clear views. If there’s a lot of fog, you might be disappointed with a blocked view. And unfortunately, there is no more than 20 minutes for you to wait for the clouds to disappear.
• Given the volcanic activity, make sure to respect the rules and pay attention to the regulations and instructions given by the park guards. This includes wearing a helmet and leaving the crater rim after 20 minutes.

Where to stay near Poas volcano and other things to do

If you want to stay close to Poas volcano then we can highly recommend staying at Poas volcano lodge. This beautiful hotel is only a 25 minutes drive to the entrance of Poas National Park and offers beautiful spacious rooms including breakfast.

Other things to do in the near surroundings are the La Paz waterfall gardens which are absolutely worth a visit. If you continue your journey further up north, then have a stop in Bajos del Toro to visit the impressive Catarata del Toro and the other beautiful waterfalls in the area.

Best tours to Poas volcano and other volcanos in Costa Rica

If you want to explore Poas volcano it is highly recommended to book your tour in advance. Because of the popularity of Costa Rica it is likely that tours sell out. So don’t wait with booking until you get to Costa Rica. Choose your favorite tour here and secure your booking! All of these tours include air-conditioned transport with hotel pick up and drop off, certified guides and sometimes also lunch and the entrance fees. You can reserve now and pay later, with cancellation up to 24 hours in advance to receive a full refund.

Tours

• Helicopter flight over Poas volcano. Get an impressive close-up aerial view of the beautiful Poas Volcano during this one hour helicopter flight.
• Poas volcano, Coffee plantation and La Paz waterfall gardens tour. Visit 3 destinations in one day on this guided tour from San José. Learn about coffee production, visit the Poas Volcano Crater, and experience the incredible nature around La Paz Waterfall Gardens.
• Irazu volcano and Turrialba volcano tour. Experience a unique history and culture shaped by the tallest and most active volcanoes in Costa Rica during this full day tour from San Jose. Marvel at the interior of Irazú Crater, the tallest volcano in Costa Rica.
• Irazú Volcano, Cartago City & Orosi Valley Tour. Visit the summit of the highest active volcano in Costa Rica, at an elevation of 3,432 meters, followed by a visit to the city of Cartago and the Orosi Valley.
• Complete tour of 4 best La Fortuna activities: hike at the base of Arenal volcano, Arenal Hanging bridges, waterfall and hot springs. This tour shows you the best of La Fortuna. Explore the volcano lava fields, Arenal Hanging bridges, cool off at La Fortuna waterfall and relax in the hot springs.

Arenal Volcano Tours

• Arenal volcano base hike. During this 3 hour tour you will see the amazing views of one of Costa Rica’s most active volcanos, Arenal. Walk on the base on the volcano with a specialist guide who can tell you about the natural history and plants of the area.
• Arenal volcano expedition in El Silencio nature reserve. Hike the trails of Arenal Volcano in the tropical forest of El Silencio. Discover characteristic flora and fauna with the help of a guide. After the hike you can enjoy some free time at the area’s hot springs.
• Arenal volcano, La Fortuna Waterfall and Hanging Bridges Combo tour. During this tour you will get the best of La Fortuna. Hike the paths of the Arenal Volcano, see the cascades of La Fortuna waterfall and walk through the rainforest canopy on the suspension bridges of the Arenal Hanging Bridges park.
• La Fortuna waterfall, Arenal volcano hike and hot springs tour. During this tour you will hike to La Fortuna waterfall, visit an aboriginal village and have a traditional lunch, discover the lava fields from the 1968 eruption while enjoying the panoramic viewpoints on La Fortuna and Arenal volcano.

More Costa Rica travel inspiration

I hope you enjoyed this blog post about visiting Poas Volcano National Park in Costa Rica.

For more travel inspiration about Costa Rica, have a look at our other Costa Rica travel guides.

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