(website)
Rental car available at airport
By car, travel time is ~50 minutes
Philadelphia International Airport
(website)
Rental car available at airport
By car, travel time is ~ 1 hour 45 minutes
Amtrak
(website)
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
(website)
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.