Philadelphia Inquirer: " . . . To get to Cape May and other points south, New Jersey Transit buses go at least three times a day on various routes from Atlantic City – some between islands, some down Route 9 going in and out along the causeways, some along the islands, stopping at a few places along the way.
The biggest fare is $5.25 from Atlantic City to Cape May, but the zone fares in between can be as little as a couple bucks."