Florida · about 11 km from Marianna
Jackson Blue Spring
- Max depth30 m (98 ft)
- CertificationCavern
- Water temperature≈ ~20 °C (~68 °F)estimated, no reports yet
- SpecialDPV-suitable
Diving and fills
Dive here with
Fills nearby
- Fill stationCave Adventurers (Marianna)Air, nitrox 32 % (banked), trimix (advance notice), O₂, helium, argonRoute ↗
What it looks like
Cave Diving Jackson Blue Spring Florida with Legend Edd Sorenson! 65 MILLION Gallons a Day! Diving Deep Inside Jackson Blue Spring 🤿 Divers React to DPV Cave Diving in Jackson Blue Spring Cave Diving at Jackson Blue 01 Narration
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Videos and posts
From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.
Cave Diving Jackson Blue Spring Florida with Legend Edd Sorenson! 65 MILLION Gallons a Day! Diving Deep Inside Jackson Blue Spring 🤿 Divers React to DPV Cave Diving in Jackson Blue Spring Cave Diving at Jackson Blue 01 Narration
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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.
The dive
A first-magnitude spring feeding Merritt's Mill Pond; water ~20 °C. Flow is 'high to variable' according to Wet Rocks, while Cave Adventurers says 'no flow': expect variable flow.
1 earlier accident or incident has been reported at this cave. Read what happened ↓
Profile and sections
A first-magnitude spring feeding Merritt's Mill Pond; water ~20 °C. Flow is 'high to variable' according to Wet Rocks, while Cave Adventurers says 'no flow': expect variable flow. The cave is silt-sensitive. A grim reaper sign stands at the entrance: do not pass it without cave certification.
JB2 (via the Freiway) has been cut off at the Firehose restriction since a 2014 collapse.
Practical: scooters for rent at Cave Adventurers.
- Depth and profile
- Basin ~-2 m, ~-4.5 m at the opening · cave -4.5 to -30 m, average ~-24 m · main line ~1.5 km plus side passages; ~3 km explored
- Configuration
- All configurations; roomy main passage, smaller side passages for sidemount.
- DPV: DPV-suitable (estimate)
- Long, roomy main passage (~1.5 km); Cave Adventurers rents scooters for this cave.
Who can dive where
- At least Cavern
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 30 m (trimix or deco may be needed)
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
County park Blue Springs Recreational Area. Sign in and buy a pass at Cave Adventurers and show it to the park attendant; when the park is closed you get a gate code (dive pass $20 the first day, $10 per following day; annual pass $175). From March to October it is a public swim park between 10:00 and 17:00.
Around Jackson Blue Spring
Fills1 fill station · 2 km
Cave Adventurers (Marianna)
5211 Limestone Ln, Marianna, FL 32446
Air, nitrox 32 % (banked), trimix (advance notice), O₂, helium, argon
Daily 8:00–18:00 (InDEPTH business directory)
Edd Sorenson's cave centre on Merritt's Mill Pond: CCR service and training up to CCR cave, guided dives, pontoon rental to Twin Caves and Hole in the Wall, scooter rental for Jackson Blue, lodging via Karst Kottages. Fills while you wait. The fill prices on the older website (air $5 single / $10 doubles, nitrox $0.11/cu ft) are probably outdated.
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News
All (2)
Nearby
Articles about cave diving that name a place within 25 km of this site, but no cave by name. They're not necessarily about this site.
Accidents and incidents
What happened at this cave before, with the sources. No names are given; read it as a lesson for your own planning.
- Fatal accident on 26 May 2023: a visiting diver got into difficulty in the cave and died.
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 13 Nov 2026.
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