Share your current location one time:Open your Messages app.Select the the message thread you want to use (This also works for group messages).Tap the round i icon in the upper right hand corner.Tap Send My Current Location. read more
How to share your location for a specific period of time: From the Details page of any iMessage thread just tap the Share My Location option and select Share for One Hour, Share Until End of Day or Share Indefinitely from the pop up box. read more
Stop Sharing Your Location on an iPhone 7. The steps below were performed on an iPhone 7 Plus, in iOS 10.2. These steps assume that you had previously shared your location with someone so that they could view your geographic location on a map. You can also use these steps if you are unsure whether you are sharing your location with someone. read more