+venushiker Posted February 24, 2011 Posted February 24, 2011 I just got certified for scuba and I was wondering if there are any caches out the in the deep blue yonder? If so, is there an underwater gps or how does one search for a geocache underwater? Quote
+pppingme Posted February 24, 2011 Posted February 24, 2011 Even an inch of water will block GPS signals. The usual method for the ones I've seen seem to be to boat (or I guess even swim) to the posted coord's, then go straight down. Quote
+dfx Posted February 24, 2011 Posted February 24, 2011 Yep, there are scuba caches, and they should be marked with the appropriate attribute ( ), which makes it possible to search for them through a pocket query. If there are any in your area and how many is hard to predict, you're just gonna have to craete the PQ yourself (or tell us where you are). GPS doesn't work under water as only small amounts of water absorb the radio frequencies used for GPS. That doesn't mean you can't use GPS for finding or hiding them though, you just have to use it above water, when you're directly above the cache. Of course it's very hard to tell when you're directly above the cache, or where exactly is directly below you, which is why scuba cache coordinates have to be always taken with a grain of salt, and most (all?) of them will include other instructions on how to find the cache down there. Quote
+lamoracke Posted February 24, 2011 Posted February 24, 2011 only one in the greater Seattle area at this time though I know someone who apparently has some in the works. http://www.geocaching.com/seek/cache_details.aspx?guid=ba1827bc-9a07-440b-ad2a-333aefbd837e Pencils Only its called. Technically one can dive for it so its not a pure scuba cache. Quote
+niraD Posted February 24, 2011 Posted February 24, 2011 You might want to look for bookmark lists of real scuba caches, because the scuba attribute has been misused as an identifier for numbers run trails like the ET Highway trail and the Route 66 trail. Quote
knowschad Posted February 24, 2011 Posted February 24, 2011 You might want to look for bookmark lists of real scuba caches, because the scuba attribute has been misused as an identifier for numbers run trails like the ET Highway trail and the Route 66 trail. Or look for a combination of the scuba attribute and the difficulty & terrain levels to avoid those powertrail caches. Quote
LordShamrock Posted February 24, 2011 Posted February 24, 2011 I would love to do a scuba one someday.. Although how does one sign the log underwater? Quote
+dfx Posted February 24, 2011 Posted February 24, 2011 I would love to do a scuba one someday.. Although how does one sign the log underwater? The two options I've seen so far: Either it's a waterproof, air-filled container that you have to take to the surface to open and sign the log, and then make a second dive to replace it, or it's a water-filled container that can be opened under water and the log is a dive slate or something similar. Not sure how either of them hold up in the long term, or if there's any other options. Quote
+geodarts Posted February 25, 2011 Posted February 25, 2011 Yep, there are scuba caches, and they should be marked with the appropriate attribute ( ), which makes it possible to search for them through a pocket query. Except of course if you are searching for the scuba attribute in the Nevada desert or along Route 66. Quote
TheCacheSeeker Posted February 25, 2011 Posted February 25, 2011 I would love to do a scuba one someday.. Although how does one sign the log underwater? The two options I've seen so far: Either it's a waterproof, air-filled container that you have to take to the surface to open and sign the log, and then make a second dive to replace it, or it's a water-filled container that can be opened under water and the log is a dive slate or something similar. Not sure how either of them hold up in the long term, or if there's any other options. I have another idea. Sign your name on a sheet of paper. Laminate it. Then leave it in the cache in a baggie. I can see why this wouldn't be a good idea if lots of people did it, though. Quote
LordShamrock Posted February 25, 2011 Posted February 25, 2011 I thought about that but I could imagine the laminated cards floating out of the cache container and going through the water. My luck there would be a jelly fish hiding in the container. Quote
TheCacheSeeker Posted February 25, 2011 Posted February 25, 2011 (edited) I thought about that but I could imagine the laminated cards floating out of the cache container and going through the water. My luck there would be a jelly fish hiding in the container. If you put all the laminated cards into one baggie, you probaly won't have this problem. edit: spelling Edited February 25, 2011 by TheCacheSeeker Quote
RainbowKat Posted February 25, 2011 Posted February 25, 2011 You might want to look for bookmark lists of real scuba caches, because the scuba attribute has been misused as an identifier for numbers run trails like the ET Highway trail and the Route 66 trail. Why don't the cache approvers disallow this? And what does scuba have to do with numbers runs? Quote
+pppingme Posted February 25, 2011 Posted February 25, 2011 what does scuba have to do with numbers runs? Its an attribute that has almost zero chance of showing up in those areas. Since there is no power-trail attribute, despite many people requesting it. If you want to find true scuba caches, you're probably safe to filter on this attribute and a diff or terr level of >2 or >3. Power trails generally have d/t ratings of <2. Quote
+dfx Posted February 25, 2011 Posted February 25, 2011 Looking at the OP's usual caching area, power trails don't seem to be the problem there, it seems to be "liar caches" messing with the search result. There's quite a few caches coming up with the attribute, but from the few that I checked, none were actual scuba caches. Quote
+briansnat Posted February 25, 2011 Posted February 25, 2011 You might want to look for bookmark lists of real scuba caches, because the scuba attribute has been misused as an identifier for numbers run trails like the ET Highway trail and the Route 66 trail. Why don't the cache approvers disallow this? And what does scuba have to do with numbers runs? It is not a guideline violation to misuse an attribute. Reviewers might suggest that the attributes be used correctly, but because the guidlines don't address them reviewers will publish caches with wrong attributes. It is however a highly inconsiderate practice. Quote
+Semper Questio Posted February 25, 2011 Posted February 25, 2011 We have a couple of SCUBA caches up here in Lake Travis. It's only about 3 hrs. from you. Come up, do a little SCUBA, then go do the Necropolis! Quote
+GeoGeeBee Posted February 25, 2011 Posted February 25, 2011 This topic got me curious, so I did a pocket query. There are 17 "scuba caches" in the state of North Carolina, and only two of them appear to actually be under water. A surprising number of people seem to find it amusing to put a blinky on a stop sign and add a bunch of random attributes like Scuba, "watch for livestock," swimming, etc. Quote
tommytrojan360 Posted February 27, 2011 Posted February 27, 2011 http://www.geocaching.com/seek/cache_details.aspx?guid=7acd7842-eb92-44b3-933f-15915fca508b This is a really cool one on Catalina in OC. Sorry if it's too far away, but it's a cool one! Quote
+Trich08 Posted February 27, 2011 Posted February 27, 2011 I just got certified for scuba and I was wondering if there are any caches out the in the deep blue yonder? If so, is there an underwater gps or how does one search for a geocache underwater? A buddy and I are Scuba Instructors and have been discussing hosting a scuba experience in our pool for fellow cachers and then hiding several scuba caches at our local dive site for those that attend to take a crack at finding. Does this sound like something that might be of interest? I have wondered if it might be better to make them multicaches. I'm located in the Dallas area we have a nice local dive site that is large enough for several caches. Cheers Quote
+reidsomething Posted March 1, 2011 Posted March 1, 2011 If you're interested, here's a video we made at Groundspeak about scuba caches: http://www.youtube.com/watch?v=zItASKLRq1I&feature=player_embedded enjoy! Quote
+MetsFan86 Posted March 24, 2019 Posted March 24, 2019 https://scubaworld.com/scubanews/gps-based-underwater-navigation-technology-for-divers Quote
+DerDiedler Posted March 25, 2019 Posted March 25, 2019 16 hours ago, MetsFan86 said: https://scubaworld.com/scubanews/gps-based-underwater-navigation-technology-for-divers wow, sounds great. But calling it "GPS based" seems a bit fishi to me. GPS has absolutely nothing tot do with the under water navigation. I´d like to know how percise it is under water since many factors could affect the sensors, such as currents, changing air presure, magnetic fields (esepcialy in caves or ship wrecks). How ever, seems like a sofisticated pice of technilogy. Retails at $$$$$? Quote
+lee737 Posted March 25, 2019 Posted March 25, 2019 I suspect the unit takes your last surface GPS position, then uses its inertial sensors to calculate your displacement from that starting position.... I could be wrong, but that's what I got from reading the linked page.... Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.