well, eventually waps is that builds up and it has to go back. we'll break through these sandbars. as earl comes in and churns up that water and that sand, more sandbars are developed. so it will break on through there. it's a fast channel of water. not very wide, only 20 to 100 feet or so. it moves so fast that even an olympic swimmer would have a hard time outswimming this thing. what do you do if you get caught in one of these things? swim parallel to the shoreline because that will get you out of that narrow current into the calmer waters and hopefully you can make your way back towards the coast. they had several rescues today. these are pictures from ocean city, maryland. last weekend, they had 200 rescues. today, just a couple. but look at those crashes waves. but the sun is shining so it looks great. the lifeguards out in full force. those red flags have been flying. sometimes you guy cans see these rip currents ahead of time if you maybe go to the hotel or the condo that you're staying in, go to the balcony.