So we spent a few hours on the awesome looking Backyard O’ahu but found over and over that the great looking hikes were all either illegal or needed advance permission to use. Bummer. So we found the Kealia Trail, nice and close to our rental home on the North Shore, and did a nice early morning punch.

A view from near the top:

I shot a couple of panoramas, too, and stitched them up with Hugin

Here’s the GPS data from the hike:


View Larger Map

The workflow to produce this data is a little bumpy, so I’m documenting it so I can remember it for myself, and presumably it’ll be interesting for someone else as well.
Tools

  • Garmin eTrex Vista HCx
  • Mac running Leopard

Steps

  1. Save the track on the GPS
  2. Connect to your computer and use Garmin Bobcat to import it.
  3. Elevation View: Clean up the tracklog to have just the points you want. The elevation view is just a screenshot (using Skitch) of the elevation view feature of Bobcat.
  4. Export a GPX File The export is a bit silly: You have to add the tracklog to a folder and then export the whole folder as a gpx. Ok.
  5. Create the Google Maps compatible version: gpsbabel -i gpx -f Kealia\ Trail.GPX -o kml -F kealia_trail.kml
  6. Load it in Google Maps. Drill down into your data set and turn off everything but the “path”
  7. Right-click your path (very important) and say ‘email’. (Sounds nuts, but it’s the only export function I can find?) Drag and drop the file out of the email that got created and throw the email itself away.
  8. Upload the kmz file to some hosting somewhere.
  9. Go into Google Maps and search for the URL of that KMZ file.
  10. Choose ‘Link to this Page’ ... ‘Customize and Preview embedded map’.

Jul 11, 03:19 PM − Posted in

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