I did two years as a swamp rat in Maun and it was the best two years of my life! No experience will ever match it. GO FOR IT. The advice from passionforflying is spot on. Take it to the word. Be tenacious and patient when you get there - DONT rub the pilots up the wrong way, take a healthy liver to destroy ( and lots of beer money) and be willing to work hard and not complain. Good luck.