Last Updated: July 24, 2025
A unique way to see some of Costa Rica’s best wildlife is on a river float tour. Many animals are attracted to water sources. Gently coasting down the river lets you sneak up on them in their natural habitat. In this post, we’ll tell you all about a fun safari river float trip we took in La Fortuna near Arenal Volcano. It goes down a long section of the Penas Blancas River. We’ll also share how you can plan an excursion like this for yourself.
Location
We did this float tour while staying near downtown La Fortuna in Costa Rica’s Northern Highlands.
This area is famous for the cone-shaped Arenal Volcano, but also has many other activities like hiking, hanging bridges, adventure tours, and even cultural tours. See our post 19 Unique Things to Do in La Fortuna for more.
The town of La Fortuna is about 2.5 hours from both of Costa Rica’s international airports, SJO near San Jose and LIR in Liberia.
For the river float tour, we headed east from La Fortuna. It was just a short drive (about 30 minutes) to a river called the Penas Blancas.
This river flows north, merging with the Fortuna River, and its waters eventually flow into Nicaragua.
The safari float tour travels along 5.6 miles (9 km) of the Penas Blancas River and just a half mile (about one km) of the Fortuna River.
Setting Off
On the ride to the river put in, we passed large agricultural fields of pineapple, papaya, and yucca. Our guide, Fauricio, told us some cool facts about each crop.
Once we arrived at the river put in, we had a little time to use the restroom and get our life jackets on. Soon it was time to push off the rocks and head down the river.
With a short safety talk from Fauricio, we felt at ease about our responsibilities. We would be on a large inflatable raft, with the guide leading the way. We would be asked to paddle occasionally, but mostly we could enjoy the ride along the calm, yet swift, river (class I difficulty).
Our raft and paddles were the same type used in more extreme whitewater rafting tours. Although we wouldn’t be getting jolted around on this river, we still put some of our belongings in the company’s dry bags, just in case.
Tip: There are definitely some things you’ll want to bring on this tour to make yourself more comfortable. See our list at the end of this post.
The Beautiful Penas Blancas River
Setting off from the bank, the first thing you’ll notice during the safari float are the beautiful surrounds.
The Penas Blancas River has many lofty trees hanging over the water. The thick canopy filters the sunlight and creates almost a tunnel of jungle around you. There are birds calling in the trees, and smaller streams trickling into the larger river. It’s right out of a picture book.
The size of the river varies, but overall is about 40-60 feet (12-18 meters) wide. Fauricio, also told us that it can be anywhere from five to 25 feet (1.5-7.6 meters) deep, depending on water levels. With more rain, the river runs faster, but is still not very rough. This makes it a great spot for a gentle float tour, no matter what the weather has been doing.
What You’ll See
As we floated down stream, Fauricio pointed out different things. Many were easy to spot like ducks, kingfishers, and iguanas. But he had a great eye for some harder to spot things as well.
At one point, he asked us to paddle backwards and slow the raft to a stop. Then he said, “Look right above you.”
We had to squint to understand what we were looking at. But sure enough, on the underside of a branch, was a family of small bats. They were very camouflaged, blending into the brown background almost perfectly.
Fauricio explained that these were long-nosed bats and that they are important for the ecosystem because they eat a lot of mosquitoes!
In addition to wildlife, we learned about the surrounding environment. Fauricio told us about many of the tree species along the river, including the balsa and rubber.
Balsa trees are famous for their lightweight wood and have been used in airplane and boat construction. Rubber trees, of course, produce an elastic material used for all sorts of products.
We also learned about some interesting plants like the broad-leafed tabacon and saw various types of banana plants growing along the edges of the river.
Wildlife Highlights
Although it was really interesting to learn about the plants, local weather patterns, and indigenous groups of Costa Rica, most people take the safari float trip for the wildlife viewing. And this tour did not disappoint.
Some highlights were seeing several families of howler monkeys, a mother sloth and her baby close up (picture above), and crocodiles on four different occasions.
One crocodile was at least eight feet (2.4 meters) long, while the rest were smaller. Our son (five-years old at the time) was very happy to see these and even happier that they were shy and scared of us.
Interesting birds we saw included the Anhinga, Amazon Kingfisher, Green Kingfisher, Whistling Ducks, Buff-rumped Warbler, and many Mangrove Swallows.
Here’s a Short Video With the Tour Highlights!
Tasty Treats!
After a couple of hours on the Penas Blancas River, we drifted into the Fortuna River. At this point, the river was wider and had less of a canopy, but was still similar.
Shortly after, we came to the spot where we’d get off the boat. Here, we climbed a set of steps to find an outdoor dining area.
Traditional Snack
Once everyone made it up to the restaurant, we got to sit down for a snack that included several traditional foods. There were handmade tortillas, cheese, and roasted plantains. These tasted great after building up an appetite on the river. We also enjoyed some local coffee and fruit juice.
One of the highlights during this snack was that the chickens, ducks, and turkeys roaming freely in the yard loved the left over plantain skins. Our son Sam had the time of his life flinging scraps to them on the other side of the fence!
Chocolate Demonstration
After eating, Fauricio called us over to see some cacao plants growing in the yard. He took one of the strange looking pods off the small tree and briefly explained how chocolate is made from the seeds inside.
Back inside, he called up volunteers who then got to grind some of the dried cacao and mix it into a traditional drink. Fauricio said that long ago, this drink was reserved for only the most important indigenous leaders. We all had a taste and agreed it was better mixed with sugar!
Booking a Safari Float Tour in La Fortuna
If you’d like to book a tour through the company we used and often send clients to, please use the booking links below. You won’t pay until the reservation is confirmed, and we’ll email you as part of the process. Booking through us costs the same and helps support our website!
Times Offered
7:30 a.m. or 2:00 p.m.
Both times are great for wildlife viewing because morning and late afternoon are when the animals are most active.
Tour Length
Approximately 4.5 hours (including driving time)
Price (2025)
Group Tour: $64 per person adults, $38 per person children (ages 3-11). Rates plus 13% tax.
Private Tour (only your family/group): $105 per person adults, $60 per person children (ages 3-11). Rates plus 13% tax.
What’s Included
Round-trip transportation from La Fortuna-area hotels and vacation rental homes, bilingual naturalist guide, all equipment, water, and a stop for snacks, juice, and coffee.
Minimum Age
Children need to be at least 3-years old.
If you have children younger than 3, we recommend the Cano Negro boat tour. This is on a larger, sturdy pontoon boat.
What to Bring
It can be sunny along the river. We recommend bringing a hat, sunscreen, insect repellent, camera, sandals or sneakers, and quick-dry clothing. Binoculars also would be handy to see high up in the canopy, especially if you’re interested in bird watching.
You don’t need a bathing suit since you won’t be swimming.
Our biggest question was if it was okay to bring our large (expensive) SLR camera. It turns out it was completely fine; we just made sure to keep it strapped around our neck the whole time. We also used our cell phone to take pictures and videos.
Conclusion
We have been to La Fortuna many times during our years living in Costa Rica, and the safari float tour along the Penas Blancas River was one of our all-time favorite things to do with kids. We’ve actually done it twice now. Not only is it a great way to see some amazing wildlife, but the boat ride along the river is fun and not stressful at all. If you are planning activities in La Fortuna, we would highly recommend it.
Have a question about the safari float tour in La Fortuna? Post a comment below.
Looking for more information to plan your trip? Check out these posts:
La Fortuna: What to Expect from Costa Rica’s Most Popular Destination – There is a reason why most travelers pass through La Fortuna/Arenal. Check out this post for an overview of the town, hotel and restaurant picks, and much more.
La Fortuna Tours/Activities – Looking for more fun things to do during your time in the Arenal area? Check out this list of more tours we recommend and can help you book.
Mirador El Silencio Trail – There are lots of options for hikes around Arenal Volcano. This is one of our favorites. The jungle is beautiful and it’s usually less busy.
River Float Wildlife Tour in Guanacaste – If you don’t have time to do a river float tour in La Fortuna, this option from Guanacaste destinations is very similar.
Things to Do in Costa Rica – Explore 150+ more articles similar to this one. From fun hikes through national parks to adventurous waterfall trails, hanging bridge walks, hot springs, boat tours, and more.
