If you’re planning a Florida trip and searching for something beyond the usual theme parks and beaches, bioluminescent kayaking should be at the top of your list. Known as one of Florida’s most magical natural wonders, the glowing waters of the Indian River Lagoon attract thousands of adventurers every year. But when is the best time to see this incredible phenomenon? And where should you go? Here’s everything you need to know to plan your bioluminescence tour in 2025.
What Is Bioluminescence and Why Does It Happen in Florida?
Bioluminescence is the natural emission of light by living organisms. In Florida, this magical glow is caused primarily by dinoflagellates, tiny plankton that emit light when disturbed, creating a blue-green shimmer in the water. During warmer months, these organisms thrive in the Indian River Lagoon, especially near Cocoa Beach, Titusville, and Merritt Island.
This area is one of the few places in the world where you can experience bioluminescent kayaking tours through glowing waters.
When Is the Best Time to See Bioluminescence in Florida?
Bioluminescent season in Florida runs from May through early October, with peak brightness typically occurring during the hottest months — June, July, and August. This is when the water is warmest and dinoflagellate concentrations are highest.
The best nights to see the glow are during the new moon phase when the sky is darkest. A dark sky makes the glowing effect more visible, so planning your tour around the new moon dates is highly recommended.
Upcoming 2025 New Moon Dates:
- April 27 (Great for early season viewing)
- May 26
- June 25
- July 24
- August 22
- September 21
- October 21
Why Summer 2025 Will Be One of the Best Times to Go

Summer 2025 aligns with multiple new moon windows that fall on weekends, making it perfect for travelers and locals alike. This year, the bioluminescence is expected to be especially bright during late June and throughout July due to warmer-than-usual temperatures.
Pro tip: Book your tour as early as possible — weekends and new moon weeks sell out fast. Clear kayaking tours are the most popular, offering the best visibility of the glowing water beneath you.
Where to See the Best Bioluminescence in Florida
BK Adventure offers several tour launch points that give you access to the brightest waters:
- Haulover Canal (Titusville) – A classic spot for wildlife sightings
- Kiwanis Island Park (Cocoa Beach area) – A great location for families and group tours
- Beacon 42 (Merritt Island Wildlife Refuge) – Known for the best stargazing
- Parrish Park (Weekend-Only Launch) – The only tour that allows you to swim in the bioluminescence (seasonal)
All locations are about 45 minutes from Orlando, making them ideal for day trips or weekend getaways.
Tips for Booking a Bioluminescent Kayak Tour
- Book during a new moon week for the darkest skies
- Wear lightweight, water-friendly clothing
- Choose a clear kayak for the most immersive experience
- Book in advance, especially for weekends and holidays
What About Comb Jellies?
Comb jellies are another bioluminescent creature that appear in Florida’s waters, but they are not part of the summer glow. Comb jelly season runs from November through April, making it a unique winter attraction.
If you’re visiting in summer, your bioluminescent experience will feature dinoflagellates, which create a more sparkly, firework-like effect in the water.
Final Thoughts: Make Bioluminescence Part of Your 2025 Travel Plans
If you’ve been searching for the best time to see bioluminescence in Florida, summer 2025 is it. With perfect conditions, multiple new moon weekends, and stunning launch sites near Cocoa Beach and Orlando, there’s no better time to paddle through glowing waters.
BK Adventure is Florida’s #1 bioluminescence tour company, offering unforgettable experiences for couples, families, and adventurers of all kinds.
Ready to book your tour? Check availability and plan your glow night now.