Ambient Pressure: Records ambient pressure changes over aperiod of time.Barometric Pressure: Records barometric pressure changesover a period of time.Elevation/Distance: Records elevation changes over adistance.Elevation/Time: Records elevation changes over a period oftime.Reset: Resets the elevation plot data.Clear Current Track: Deletes the track log.Delete All Waypoints: Deletes all saved waypoints.Reset Trip Data: Resets all trip data.Restore Defaults: Restores the device to factory settings.Calibrating the Barometric AltimeterYou can manually calibrate the barometric altimeter if you knowthe correct elevation or the correct barometric pressure.NOTE: The barometric altimeter is available only on theGPSMAP 64s and GPSMAP 64st.1 Go to a location where the elevation or barometric pressureis known.2 Select PAGE > Elevation Plot > MENU > CalibrateAltimeter.3 Follow the on-screen instructions.Restoring Default Page Settings1 Open a page for which you will restore the settings.2 Select MENU > Restore Defaults.Main Menu Features and SettingsGeocachesA geocache is like a hidden treasure. Geocaching is when youhunt for hidden treasures using GPS coordinates posted onlineby those hiding the geocache.Downloading Geocaches1 Connect your device to a computer using the USB cable.2 Go to www.garmin.com/geocache.3 If necessary, create an account.4 Sign in.5 Follow the on-screen instructions to find and downloadgeocaches to your device.Navigating to a Geocache1 From the main menu, select Geocaches.2 Select a geocache.3 Select Go.Logging the AttemptAfter you have attempted to find a geocache, you can log yourresults. You can verify some geocaches atwww.opencaching.com.1 Select Geocaches > Log Attempt.2 Select Found, Did not Find, Needs Repair, orUnattempted.3 Select an option:• To stop logging, select Done.• To begin navigation to the geocache nearest you, selectFind Next Closest.• To enter a comment about looking for the cache or aboutthe cache itself, select Add Comment, enter a comment,and select Done.• To rate the geocache, select Rate Geocache, and enter arating for each category. You can go towww.opencaching.com to upload your rating.chirp™A chirp is a small Garmin accessory that is programmed and leftin a geocache. You can use your device to find a chirp in ageocache. For more information about the chirp, see the chirpOwner's Manual at www.garmin.com.Enabling chirp Searching1 From the main menu, select Setup > Geocaches.2 Select chirp™ Setup > chirp™ Searching > On.Sending and Receiving Data WirelesslyNOTE: This feature is available only with the GPSMAP 64s andGPSMAP 64st.Before you can share data wirelessly, you must be within 10 ft(3 m) of a compatible device.Your device can send and receive data when paired withanother compatible device or smartphone using Bluetooth® orANT+™ wireless technology. You can share waypoints,geocaches, routes, tracks, photos, and custom maps.1 Select Share Wirelessly.2 Select an option:• Select Send, and select a type of data.• Select Receive to receive data from another device. Theother compatible device must be attempting to send data.• Select BaseCamp Mobile to pair the device with theBaseCamp™ Mobile application on a compatiblesmartphone.3 Follow the on-screen instructions.Setting a Proximity AlarmProximity alarms alert you when you are within a specifiedrange of a particular location.1 From the main menu, select Proximity Alarms > CreateAlarm.2 Select a category.3 Select a location.4 Select Use.5 Enter a radius.When you enter an area with a proximity alarm, the devicesounds a tone.Selecting a ProfileWhen you change activities, you can change the setup of thedevice by changing the profile.1 Select Profile Change.2 Select a profile.Area CalculationCalculating the Size of an Area1 Select Area Calculation > Start.2 Walk around the perimeter of the area you want to calculate.3 Select Calculate when finished.Satellite PageThe satellite page shows your current location, GPS accuracy,satellite locations, and signal strength.Satellite SettingsFrom the satellite page, select MENU.Main Menu Features and Settings 5