Below, in descending order, are the 25 summer tourist destinations with the worst traffic bottlenecks, according to a report by AAA, TRIP and the American Highway Users Alliance.

Oregon coast

Tidewater region, Virginia

Maryland-Delaware shore

Lakes and campsites near Branson, Mo.

Outer Banks, North Carolina

Cape Cod, Massachusetts

New Jersey shore

Napa Valley, California

Pennsylvania Dutch-Amish country

Catskill Mountains, New York

Pocono Mountains-Lake Wallenpaupack, Pennsylvania

Provo Canyon, Utah

Yosemite National Park, California

Asheville, N.C.

Sun Valley, Idaho

Lake Tahoe area, Nevada

Lake Winnipesaukee, New Hampshire

Yellowstone National Park, Idaho, Wyoming, Montana

Presque Isle State Park, Pennsylvania

Acadia National Park, Maine

White Mountains, New Hampshire

Lake George, New York

Myrtle Beach, S.C.

Whitewater region, Idaho

The Hamptons, New York