The meridian game

Challenged by a trainee to come up with a lesson to teach longitudes and latitudes, I came up with three games:
1. Battleship.
Each player marks 5 locations with  hidden bombs or battleships which the other tries to guess by naming geolocations.  This helped to familiarize students with searching and naming geographical points.
2. Rescue mission
Thee are two teams.  The teacher names a geographical location, eg: 40N, 116E and the students have to locate the city where the missing person is as fast as possible.
3. Conference call
Students are assigned cities. They work with each other to find a convenient time for a phone or video chat.  Then the whole class tries to find a time to meet online.