if you don't make it, you're just fighting to survive. fighting for your life. >> what's interesting is there's all sorts of techniques and tools now that you guys, professional surfers can use to figure out when to catch a perfect wave like that when they're in portugal. tell us about the web sites and stuff like that. >> we got surf line and buoy weather and fm mach. three tools i use, the internet is so amazing, we can see the swells coming and we can take a plane and get in front of the swell and wait for it to come in. we know exactly how big it's going to be. when the biggest wave is going to hit and it's a science now. it's amazing with the internet. >> i'm just amazed, number one, that they knew exactly how big the wave was. how do you get the exact footage? it's not like baseball, you can use a tape measure. >> yeah, it's really funny. we really don't know exactly where the bottom is so it's all, you know, depends on who is measuring. >> yeah. just out of curiousity, if you ever fall off a 78-foot wave,