Mapping an UNEXPLORED Cave for the first time!

Jonathan and Todd join cave explorer Mike Young to assist with his ongoing exploration of Chun-Ha Cenote located right in the middle of the city of San Miguel on the island of Cozumel. It's Jonathan's first time laying line into virgin cave passages! After it's surveyed, the team can see where it goes on Google maps under buildings, streets and parks!

WARNING! Cave diving is a potentially dangerous activity. Do not dive in caves without proper equipment and training. This video is in no way intended to be instructional.

JONATHAN BIRD'S BLUE WORLD is an Emmy Award-winning underwater science/adventure series featuring underwater cinematographer/naturalist Jonathan Bird.

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#scubadiving #cavediving #rebreather

Chapters:
0:00 Intro
1:36 Arrive at the cave
6:55 Starting the dive
9:24 Maya Beehives
12:05 Jonathan gets the reel
17:12 Surveying the line
19:33 Seeing the map
21:48 Close

[FamiliarAnomaly]

Not a cave diver but came to appreciate this fact - every time they dive there is a chance they find something that is "pre-great flood" or the 135-200ft rise that happened 10k years ago. That makes it extra exciting when it's a new place.

[DIVETALK]

Thank you for the shoutout! Looks like there’s so much more cave left to be explored!

When are we going back?!

[kurt]

You boldly went where no one has gone before - for 60 feet. Better than most of us! Congrats!

[DreamoriesAniOngaku]

What an honour to experiece the yet explore path of the cave together, proud of you guys as always!

[lucienjaubert]

Always a great day when Jonathan uploads!

[Avboden]

The mapping software is the star of the show to me, that's awesome.

[abuelojoven]

Gus is also there !
Long life to Dive Talk & Blue World!

[nayaleezy]

remember to do your single wraps over the top of the line. It's a small optimization that if you drop the spool, it's not lost because it's hanging off the line. ❤

[heart_of_a_Celt]

These videos are so well crafted they could be in the cinema, such a joy to be able to watch them, but this one in particular was also scary as it brings home to me how critical those lines are, they are really life lines! I know there are lost line drills, but boy if anything happened to the line.. But still national geographic level documentaries on youtube is a gift. Thanks again so much for making these truly incredible films! I call them films as their quality is way beyond video!

[hidehide-dg]

Did you dive into a cave !! marvelous!! I respect your brave heart!

[liutjinsiu]

I watched you as a kid im in college now. thanks showing me the beauty of the underwater world ❤

[lucy_]

i’ve been watching this channel with my brother since i was around 2 years old, and i still love watching it!! this channel basically raised me :)

[benderbendingrodriguez]

Wow.. insane how thats just right in the middle of a residential area. Very cool cave that can help undertand Earth history given its uniqe situation. Cool you got to lay down new line, how thrilling!

[RWandDRW]

Terrific video! Thanks for showing the process and not overdoing the whole “Cave diving is the most dangerous sport in the world” thing.

[youknoweverything]

My cave diving instructor that i got my certs and leasons and training from and i been with him and his wife for my carts since day one of scuba lessons all the way to my cave diving certs in joining him his wife map out a unmarked underwater cave and its my forst time doing it im nervous but they told me it will be fun and exciting seeing stuff for first time ever seen by humans and they gonna lwt me run a few lines for my forst time ever as well cant wait your video made me a little more at ease. And i got to initial and number the survey spots woth the line markers as well and it was so cool knowing i documented and laid that line and saw that lart of cave for first time ever seen by a human and my initials are now engraved for everyone to see for ever and years to come. All my numbers i placed was personal to me like the month i was born 06 my mom and dads birth months and two brothers birth months my wife and i anniversary year, and my new borns son birth month on one and birth year on the following one which was exciting. And my instructors wife found a new species of a type of crayfish that has never been seen before in united States and only thought to be native to and live in this one tiny little creek in Australia so that was exciting

[lololandify]

You're brave, I would be terrified

[elaineb]

So this is why you got the certs!!! Exploring new places sounds fun, especially if you're the first there!!! Running late as I had projects needing full focus xxx

[SaurabhOKumar]

Great creative and mapping work, Mr. Bird. Loved every bit of it. 👍🥽🫧

[andreykarayvansky]

What a great adventure and awesome video! So many changes in the water, bacteria, dirt, salt water, fresh water, rocks, stalactites! You also had a guy from dive talk in your video.

[buckyplayz]

Wow. That was really cool!!! A shout out from southeastern mass cave divers, now living in Florida! Way to go JB!!! Loved it!!