There are moments in nature that stop you completely — when the ordinary becomes extraordinary, when water turns to light. The bioluminescence tour near Santa Teresa, Costa Rica is one of those moments. I live in this region and I've guided dozens of visitors through this experience, and I still get goosebumps every single time.
What is Bioluminescence?
Bioluminescence is light produced by living organisms — in the ocean, it comes from microscopic plankton called dinoflagellates. When disturbed by movement, these tiny creatures emit a brilliant blue-green glow. Paddle your hand through the water and watch it light up like a galaxy beneath you.
The calm Gulf of Nicoya near Paquera — a short trip from Santa Teresa — is home to some of the most spectacular bioluminescence displays in all of Central America. On the right night, the entire bay can shimmer electric blue.
What the Tour Looks Like
We depart after dark — usually around 7:30–8:00 PM — when the sky is deep and the plankton are most active. You have two options:
- Kayak: Double or single kayaks, perfect for couples or solo travelers. The paddle creates glowing streaks with every stroke.
- Paddleboard (SUP): For a more immersive experience. Standing on a board above glowing water is something you'll describe for years.
We launch from Paquera, on the calm, protected waters of the Gulf of Nicoya, away from boat traffic and light pollution. Once we reach the right spot, I'll ask everyone to stop and be still. That's when it happens — the water around you pulses and shimmers with cold, blue fire.
⭐ Best conditions: New moon nights with warm water. The tours run year-round, but the dry season (December–April) often offers the clearest skies and calmest water.
What to Expect
- Duration: approximately 2 hours
- Difficulty: easy — suitable for all fitness levels, no prior kayak experience needed
- Safety equipment: life jackets, waterproof lights, first-aid kit
- Small groups only (maximum 8 people)
- Languages: Spanish and English
Why Book with Me
I'm José Cardoza, a local guide and Spanish teacher who lives in Santa Teresa. I know these waters by night and by day. I know where the plankton concentrates, which beaches have the least light pollution, and how to make sure your group has a safe, magical evening.
I keep groups small so everyone gets personal attention and a close-up experience — not a crowded boat tour where you can barely see the water.
How to Book
Just send me a message on WhatsApp. I'll confirm availability, check the moon phase for the best possible night, and take care of everything else. Bring a towel, wear clothes you don't mind getting a little wet, and prepare to be amazed.