Me and my wife's biggest concern about going to Antartica was the safety factor and not being able to contact anyone if anything happened to us. Several ships have been stuck in the ice recentely and one ship has sunk in Antartica. My wife was well aware of this and was very hestitant about taking this cruise and landing on the ice for the daily walks with the penguins. I then found out about the SPOT GPS device and I took it home to my wife and showed her that we could use this to track our trip and we could use the 911 in case of any emergency. This device enabled us to to take this trip to Antartica and not have to worry about our fears. It worked like a charm and our OK signals were received on a daily basis. Fortunately we did not have to use the 911 feature!! I would recommend taking the SPOT GPS device to any remote area to ease any fears about being lost.