Sandy shores are still the number-one summer getaway: Nearly 50 million vacationers hit the beaches in June, July, and August. More than one-third of them travel 100 miles or more to dip their toes into oceans, the Gulf, or the Great Lakes. Who goes: More men than women, more families than couples, and more 18-to-34-year-olds. Once there, 45 percent stay in a hotel or motel; 29 percent stay with family or friends; 17 percent stay in a rented home or condo; 10 percent stay in their own homes or condos; 9 percent camp; and 6 percent stay at a bed & breakfast. Here's a snapshot of vacationers at a few of our nation's swimming holes.