I used a disposable one time that was rated to 50 feet. It took pictures down to that depth, but I accidentally went past that depth and the button you push to take a picture no longer worked due to water pressure I guess. I went to at least 70 feet on that dive and the camera held up. The pictures were kind of grainy though. There is a disposable camera for sale on crazyscuba.com that is rated down to 95 feet for only $17. Or you can get the 5.19 mega pixel underwater camera by Sea and Sea for $500 with a housing that is rated to 150`. You can afford 29 disposable cameras for $500 though...but the picture quality won`t be as great. I`d go with the digital camera.