Ground-to-air emergency code
These symbols are recognized by Search and Rescue pilots as distress signals. Make sure you make these signals a 6:1 ratio so rescuers can see them from the air.![image0.jpg](https://www.dummies.com/wp-content/uploads/301683.image0.jpg)
Aiming reflector
You must carefully aim your mirror’s reflection at the aircraft or vessel you wish to signal, or you may not be seen. You can use a mirror or other reflective items, such as a CD or DVD.![image1.jpg](https://www.dummies.com/wp-content/uploads/301684.image1.jpg)
Group splash
If a ring of people all kick simultaneously, the water in the center turns white, briefly, which can be seen against the blue ocean.![image2.jpg](https://www.dummies.com/wp-content/uploads/301685.image2.jpg)