Marking and Starting Navigation to a Man Overboard Location
You can save a man overboard (MOB) location, and automatically start navigation back to it. You can customize the hold function of the 
or 
key to access the MOB function quickly (Customizing the Arrow Keys).
1Select the action key.
2Select GPS Tools > MOB > Start.
The map page opens showing the route to the MOB location.
3Navigate using the compass (Compass) or map (Map).
Geocaches
A geocache is like a hidden treasure. Geocaching is when you hunt for hidden treasures using GPS coordinates posted online by those hiding the geocache.
Downloading Geocaches
1Connect your device to a computer using the USB cable.
2 Go to www.opencaching.com.
3 If necessary, create an account.
4 Sign in.
5Follow the
Navigating to a Geocache
Before you can navigate to a geocache, you must go to www.opencaching.com, and download a geocache to your device.
Navigating to a geocache is like navigating to any other location.
•See the navigation section (Navigating to a Destination) for more information.
•Go to the profiles section (Creating a Custom Profile) to create a profile for geocaching.
•Go to the geocache settings (Geocache Settings) to customize your device settings.
•Go to the data pages section (Customizing the Data Pages) to customize your data fields.
Logging the Attempt
After you have attempted to find a geocache, you can log your results.
1Select the action key.
2Select GPS Tools > Geocaches > Log Attempt.
3 Select Found, Did Not Find, or Unattempted.
4 Select an option:
•To begin navigation to a geocache nearest you, select Find Next.
•To end the logging, select Done.
chirp™
A chirp is a small Garmin accessory that is programmed and left in a geocache. You can use your device to find a chirp in a geocache. For more information about the chirp, see the chirp Owner's Manual at www.garmin.com.
Finding a Geocache with a chirp Device
1Select the action key.
2Select Setup > Geocaches > chirp > On.
3 Hold 
.
4 Select Start GPS.
5Wait while the device locates satellites.
6 Select the action key.
7 Select GPS Tools > Geocaches.
8Select a geocache, and select chirp to show chirp details while you are navigating.
9Select Go, and navigate to the geocache (Navigating to a Destination).
When you are within 33 ft. (10 m) of the geocache that contains a chirp device, a message appears.
Applications
To use some applications, you must add the application or the GPS Tools option to the main menu (Customizing the Main Menu).
Jumpmaster
The jumpmaster feature is designed for experienced skydivers, particularly those in the military.
The jumpmaster feature follows military guidelines for calculating the high altitude release point (HARP). The device detects automatically when you have jumped to begin navigating toward the desired impact point (DIP) using the barometer and electronic compass.
Planning a Jump
WARNING
Jumpmaster is for use by experienced skydivers only. Jumpmaster should not be used as a primary skydiving altimeter. Failure to input the appropriate jump related information into Jumpmaster can lead to serious personal injury or death.
1Select a jump type (Jump Types).
2Enter the jump information (Entering Jump Information). The device calculates the HARP.
3Select GOTO HARP to start navigation to the HARP.
Jump Types
The jumpmaster feature allows you to set the jump type to one of three types: HAHO, HALO, or Static. The jump type selected determines what additional setup information is required (Entering Jump Information). For all jump types, drop altitudes and opening altitudes are measured in feet above ground level (AGL).
HAHO: High Altitude High Opening. The jumpmaster jumps from a very high altitude and opens the parachute at a high altitude. You must set a DIP and a drop altitude of at least 1,000 feet. The drop altitude is assumed to be the same as the opening altitude. Common values for a drop altitude range from 12,000 to 24,000 feet AGL.
HALO: High Altitude Low Opening. The jumpmaster jumps from a very high altitude and opens the parachute at a low altitude. The required information is the same as the HAHO jump type, plus an opening altitude. The opening altitude must not be greater than the drop altitude. Common values for an opening altitude range from 2,000 to 6,000 feet AGL.
Static: The wind speed and direction are assumed to be constant for the duration of the jump. The drop altitude must be at least 1,000 feet.
Entering Jump Information
1Select the action key.
2 Select Jumpmaster.
3 Select a jump type (Jump Types).
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