We have a regularly-updated file of all the cave entrances for the entire Schvartzmooskögel system (SMK). This file also includes the tracks of the paths we regularly take: from Loser Alm car park to the col and to top camp, and from top camp to Fisch Gesicht Höhle and to Tunnocks's, Balkonhöhle and Organhöhle.
We regularly create a new version of this essential data as the expo progresses and as expoers discover new entrances and devise new routes to reach them.
To get the most recent version you will need to ask someone who is competent in using the version control system (it's in loser/gpx/ and is generated from the survex data by a script). A fairly recent copy (17 July 2018) can be downloaded from here: essentials.gpx (190K). Phones have a problem with a simple link like that. So with a phone you may need to try this link Wikilocs from where you can download a short version of the file (track and one waypoint at StoneBridge only) or a Google Earth trail (you need to create a Wikiloc account first and be logged-in when you click on this). Or here is another direct download link.
This is where it gets tricky because every device and phone app does this differently.
This should work the same way whether you have an iPhone or an Android phone.
We do not have a recommended app as there is nothing we have found which quite does quite what we need. We are using www.gpsessentials.com and OsmAnd so try one of these first. If you discover a good app, tell everyone about it.
Visit the www.gpsessentials.com website and read the manual (top left, on the menu bar: "Manual") for how to do this. Except that the manual doesn't tell you.
The OsmAnd documentation says:
More documentation on this to follow...
Connect the GPS device to your laptop (or the expo laptop) using the USB cable. A folder will open on the laptop showing the contents of the device. You will see a subfolder called "GARMIN". Open the folder "GARMIN" and copy the file essentials.gpx which you downloaded into that folder.
These need the Garmin communication protocol to import cave entrance locations (waypoints) and paths (tracks). You can't do it by simply copyingfiles. This means that you need special software on your laptop in addition to a USB cable that connects your laptop to the Garmin device.
If your Garmin has a mini-USB socket, rather than the usual micro-USB found in phones, then you might have an "old" Garmin handheld, but some modern handhelds still use this old socket.
Once you have the right cable and connected your handheld to your laptop: