When people visit Casa Roja, the first thing they usually ask about is crocodiles — and that makes sense, given our location right at the mouth of the Sierpe River. But while crocs capture the imagination, it’s actually venomous snakes that are responsible for more incidents across Costa Rica.
Out of around 140 species of snakes found in the country, about 23 are venomous. That might sound like a lot, but Costa Rica has turned this diversity into a strength. The country is home to one of the best snake research facilities in the world, the Instituto Clodomiro Picado at the University of Costa Rica. Thanks to their work, Costa Rica not only understands its snakes better than most places on the planet but also produces life-saving antivenin right here at home. This antivenin is used widely throughout the country and even exported to help treat snakebites in other parts of Latin America.
Snakes in Costa Rica are masters of camouflage. Some live high in the treetops, almost never seen by people, while others, like the infamous fer-de-lance, stick closer to the ground, hiding among rocks or leaf litter. In fact, we’ve even had fer-de-lance sightings here on the Casa Roja property — a good reminder that staying aware of your surroundings is always a smart move. Whenever you’re walking through trails or grassy areas, it’s a good idea to wear closed-toed shoes that cover your ankles. And no matter where you are, take a moment to look before you step, sit, or grab onto anything. A little caution goes a long way.

Now, before you get too worried, it’s worth noting that while snakebites do happen in Costa Rica, serious incidents are relatively rare. The country averages a few hundred venomous bites a year, but with fast medical care and the widespread availability of antivenin, most people recover fully. At Casa Roja, we’re always keeping an eye out and will advise you on how to move around safely — not just for your protection, but also to respect the incredible wildlife that shares this space with us.
Seeing a snake in the wild can be a little thrilling, but it’s also a reminder of just how alive and untamed this part of the world really is. With a bit of mindfulness and respect, you can enjoy your time in the jungle while keeping safe — and maybe even come away with a new appreciation for these fascinating creatures.