Locate friends and family from your iPhone
The Find My Friends app 
is a great way to find people who are important to you and share your location with them. Friends and family members who use iPhone, iPad, iPod touch, or Apple Watch Series 3 and later and share their locations with you appear on a map, so you can quickly see where they are. You can set notifications to alert you when friends or family members leave from or arrive at various locations.
Set up location sharing
Go to Settings
> Privacy, then turn on Location Services.Go to Settings > [your name] > Share My Location, then turn on Share My Location.
Tap From, then select the device you want to share your location from.
Share your location with a friend
On iPhone, open Find My Friends, then tap Add.
Do one of the following:
In the To field, type the name of a friend you want to share your location with (or tap
, and select a contact), then tap Send and choose how long you want to share your location.Select a friend who appears in AirDrop and choose how long you want to share your location.
Your friend receives a notification that you want to share your location and can either accept or decline.
Locate a friend or family member
You can find a friend or family member who is sharing their location with you.
On iPhone, open Find My Friends.
Tap the person you want to locate.
The person appears on a map so you can see where they are.
Set up notifications about a friend’s arrival
Select a friend, then tap Notify Me.
Choose whether you want to be notified when a friend leaves from or arrives at a location.
Choose the friend’s current location, or tap Other to create a new location for the notification.
You can ask Siri to locate a friend who has shared their location with you.
Ask Siri. Say something like: “Where’s Gordon?” Learn how to ask Siri.