Transportation

Newark International Airport
(website)
Rental car available at airport
By car, travel time is ~50 minutes

Philadelphia International Airport
Rental car available at airport
By car, travel time is ~ 1 hour 45 minutes

Amtrak
Take Northeast Corridor Line to Metropark, NJ
By taxi, travel time is ~35 minutes
Note: there are no car rental facilities at Metropark but cabs are always in line outside the station

New Jersey Transit Train
From NY Penn Station or Newark Airport, take North Jersey Coast Line to Long Branch
By taxi, travel time is ~13 minutes
Note: there are no car rental facilities at train stations but call ahead for a taxi (Shore Cabor Paramount Cab)

Of course, you can also drive. This is Jersey; there's plenty of parking.