Im actually running on a fenix hm65r, and i've had no problem in two years of use. But money burns on my pocket and im wondering if a scurion is worth the upgrade, as runtimes and lumens are, on theory, roughly the same on both models.

I'll be going to Carnegie cave in PA Friday the 7th, it'll be raining two days beforehand and ending in the morning of the 6th. Friday the 7th will be clear skies but I understand that ground water will still be of concern.

Basically does anyone have any experience with Carnegie (Burd) after a rainfall, and should it be advised to skip the trip?

Thanks guys! (⁠◠⁠‿⁠・⁠)

Sorry if this seems like a really random and reckless thing to ask, but I’d like to start getting into caving, specifically very difficult tight squeeze type caving. I have always found it fascinating and it looks really fun. I’m in Southern California, where should I start? I absolutely love watching videos on YouTube of experts tackling extremely difficult routes. I understand that I have to start simple and slow and work my way up but i just can’t seem to find caves to start in. Thank you!

Ended up being a 7 hr and 45 minute massive rooms to navigate and breakdown

I am new to cave surveying. I have learnt and experienced the different roles when it comes to surveying however Im not well versed in which cave software is the most popular and easy to use with great results. And Also i have understood that different parts of the world have different standards when it comes to sketching a cave. So can anyone help me to understand or guide me in the right direction towards being able to map a cave down into a software and if so which one should i utilise.

These caves are sloth burrows. Called paleotocas or paleoburrows, Megaichnus major (icnogenera) they were probably made by Mylodontoidea ground sloths during Pliocene-Pleistocene in South America
These pics were taken during our Paleontology lab's last trips to Vidal Ramos-SC and Urubici-SC in Santa Catarina state, Brazil.
Tunnels have about 1,2m in diameter, but some parts have been filled by sediment so we have to squeeze.

https://preview.redd.it/xz29csc49nge1.jpg?width=3872&format=pjpg&auto=webp&s=5a9bf6e684e7abd0b379fb3191d326ab44fe18e2

https://preview.redd.it/e62yosc49nge1.jpg?width=3872&format=pjpg&auto=webp&s=a787eaba39d16ae805332f3ef5505940ba8a4f97

https://preview.redd.it/xh5s4qnb9nge1.jpg?width=3000&format=pjpg&auto=webp&s=0af6de91774c073bf38d2d509e88c4ace78b68c8

https://reddit.com/link/1ifnubg/video/7h7j1idd9nge1/player

https://preview.redd.it/2ygxvpph9nge1.jpg?width=2000&format=pjpg&auto=webp&s=c23e6d76f2af70f8fd010d07fff49adab54dc2d4

https://preview.redd.it/w0hua3ph9nge1.jpg?width=2000&format=pjpg&auto=webp&s=aa5b34268f2938eb41f312a56bf55b1ca30fa836

https://preview.redd.it/scbvokul9nge1.jpg?width=6000&format=pjpg&auto=webp&s=f94cfa3a041b48f6a493949d70e410f04945f444

https://preview.redd.it/5qz3ojul9nge1.jpg?width=6000&format=pjpg&auto=webp&s=2a8dccd292bd99e10b931335a1d6c3a08d21d7ac

https://preview.redd.it/yztefjul9nge1.jpg?width=6000&format=pjpg&auto=webp&s=e0e875dd68b93636e5d50aab7acbc3e8fd140f7a

I found a hole out by a cave that’s gated off what gear should I bring to get down it? I dropped a flashlight down it and couldn’t see it hit the bottom so it goes pretty deep

I hope everyone enjoys our newest upload! Very short and digestible video of a beautiful Alabama Pit! Like and Subscribe and check out our other videos if you like it! More videos coming soon! Thank you!

Looking into getting a better headlamp but there's a lot of variability in the battery types I was wondering if there's any benefit ( I.e. run time, charge time, weight, and price ) to the different kinds of batteries headlamps use.

It appears 18650 is the most popular but, I see a lot of headlamps that also use the similar looking 18500.

I’m worried about flooding inside the caves with potential rain and snow outside as caves are usually underground aquifers or water channels. Would you ever go into a cave with the potential for wet weather above ?

So I’ve been wanting to get into caving more seriously by joining my local grotto but I have a few concerns. 1: I am 15 so I can’t yet drive myself without a parent/guardian present in the car, which may be an issue depending on where and when I need to go to places, and I’m not sure if the grotto even allows minors to join in the first place. My parents are in support of it and would ok with me joining. 2: General lack of knowledge around safe caving or being a burden on the group. 3: Lack of resources and gear. I read a post on here about a grotto instructor who was tired of lending gear to people and wanting to quit because everyone was just kind of mooching off of him for lack of a better word, and I would hate to be that guy who has to borrow stuff every time.

Off topic question at the end: why is soliciting cave locations in the UK and Slovenia allowed? I understand why it’s disallowed in the us and other places but why is it ok in those two countries? Thank you!

https://youtu.be/Xz-RPMH03EY?si=uY4DR316PmB1VnWr

A rescue done by NSW Cave Rescue and emergency services in June 2024 after a casualty fell inside the Blowfly cave system in Bungonia and had a resulting head injury. A short doco from the rescuers perspective on coordinating and completing the rescue effort.

I'm a documentary filmmaker based in the UK and have been developing a film about Mossdale Caverns in North Yorkshire. This is a system that is classified as super severe and was the location of a tragic incident in 1967 that claimed the lives of six young cavers.
Owing to the tragedy, the sensitivities of those affected, and the severe risk of flooding, this is a system that is not extensively mapped, and the view of many cavers, is that an enormous system lies beyond the discovered passages.
In the past there have been a number of dye-tracing experiments conducted which have connected the water entering Mossdale with the resurgence at Black Keld. Both the entrance series and resurgence have been mapped but there is an enormous amount of ground between the two which has not yet been discovered.
I believe that external mapping tech such as GPR would not be suitable, and it would not be feasible to use robots or remote vehicles.
So the question I have is - might it be possible to create a large number of small watertight buoys containing inertial sensors (the items used inside phones to tell the phone where it is)with batteries and data recorders to place inside the system in the hope/expectation that they will flush through to the resurgence during flood conditions, with the data collected afterwards and used to trace the motion of the buoys from point of ingest to point of reception?
Or can anyone think of any method that has been used to map unexplored caves in the past, or any other approach that might use relatively low-cost technology to achieve the same result?

Got sub 15min for my Socal Cave here. I consider rigging part of the time trial.

I've noticed plenty of subreddits have a button for including an image directly uploaded into the comments (no using fucking imgur or tinypic).

Can we please have that? :(?

Im writing a book or something similar and want to make sure I have things correct when it comes to this topic how small of a cave can a human go through

Getting back into vertical after many years out of the game. What’s your favorite rappel rig for 200’+ drops?

i want to get into it can anyone guide me in the right direction