Before using Location Faker Cydia Jailbreak on iPhone:-
Note:- You need to Jailbreak First if your iphone is not jailbroken.
Open Cydia Tweak from your iPhone and Search for LocationFaker.
You will find 2 versions of LocationFaker there, select according to your device compatibility and install Location Faker.
After installation gets finished, open Location Faker ios app, you will see your current location on home screen.
Just search and select your desired fake location on Location Faker App.
After that select location of your choice, and click On button from lower left corner.
That's it, all done.
Now open Whatsapp and send new location on Whatsapp and your fake location will be sent to your friend.