All along the eastern seashore, there are many barrier islands, most of which are long and very thin. On one side, the powerful Atlantic Ocean, and on the other the tranquil waters of the bay. Those islands are prime locations, despite the threats of erosion, bad storms, and hordes of tourists.
Unless you find a nature preserve or a piece of land not yet developed, most places by the sea have been under attack by too many visitors, shoddy development plans, and bad taste. This nice but not crowded beach is on Long Beach Island. To the right of the picture (not seen) is a tiki bar on the beach, perhaps the only there on the sand. Below, the channel that separates two islands, and where the Barnegat lighthouse is located--these pictures are taken from ontop of it.
New Jersey is the most densely populated state in the country, yet, once someone leaves its big cities & towns, it certainly doesn't seem that way. The northern part is much more packed, and the Jersey shore is known for gridlock and huge crowds.
According to some, LBI is like Cape Cod (MA) only closer--to us in the NYC metro area. I still prefer Cape Cod, but I can see some similarities here.
Long Beach Island is situated about half the way down towards Cape May, just before Atlantic City. No public transportation gets near it, no boardwalk with tacky establishments, and not as many shops as other similar spots. It's therefore much more quiet, and a good place for relaxation--if that's what you're after. LBI is about 2.5 hours south from NYC & Bergen County, NJ--depending on the traffic of course. Since NJ is narrow and the beaches are on the eastern part, traffic can be absolutely horrible.
I recently spent a few days on LBI, and I'd recommend it. Since the seasonal visitors are fewer this year (due to the economy and fuel prices), you can rent a house for just about what you'd pay for a hotel room for two people. Just bring something to protect you from the green flies and the mosquitoes; they tend to be most bothersome until August usually.
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Barnegat lighthouse is the second tallest in the US, and visitors can climb the narrow stairs--which I recommend--because the top offers spectacular views. As of 2008, the admission is only $1.
The moon shines over the southernmost tip of LBI. This southern section in Holgate is off limits to people in an effort to protect the bird nests of the disappearing piping plovers. The lights in the distance are from Atlantic City.