Cape May diamonds: what they actually are

They’re quartz pebbles. That’s the honest answer, and it makes them more interesting rather than less.

Cape May diamonds are pieces of quartz that travelled down the Delaware River and were rolled and smoothed by water and sand for a very long time before washing up on this stretch of bay shore. The tumbling is what gives them their rounded, glassy character. Polished and set, a good one genuinely looks like a cut stone — which is why the gift shops on site sell them finished.

They are not diamonds. Nobody at Sunset Beach pretends otherwise. The name is affectionate.

How to find good ones

Go at low tide. The pebble bank is exposed and freshly sorted, and that’s where the hunting is.

Look wet, not dry. A dry Cape May diamond is a dull white pebble. Wet, the clear ones light up. Rinse a handful in the shallows and the difference is obvious.

Clear beats big. The prized ones are translucent, not chalky. Small and clear is worth more to look at than large and cloudy.

The SS Atlantus: the concrete ship offshore

That grey mass in the water off the beach is the SS Atlantus — a concrete ship, which is exactly as unlikely as it sounds, and it has been sitting there long enough to become the landmark that defines this view.

One thing to get right, because almost every other page gets it wrong: it’s SS Atlantus, not ‘USS.’ SS, and the name ends in -us. If a sign, a guidebook or a listing says USS Atlantus, that listing is wrong.

What’s visible has shrunk considerably over the decades — the bay is steadily reclaiming it, and you’re seeing less than a visitor did a generation ago. Photograph it while there’s something to photograph. At sunset it silhouettes, and that’s why this beach became the sunset beach rather than any other west-facing spot on the bay.

Don’t try to reach it. It’s in the water, it’s deteriorating, and this is an unguarded beach. Look from the shore.

The flag-lowering ceremony

Every scheduled evening at 7:00pm, the flag flying over Sunset Beach comes down while a recording plays and a crowd of a few hundred people stops talking. It’s free. It takes a few minutes. It is, for a lot of visitors, the thing they remember about Cape May.

Here’s the detail that gives it weight: the flags flown here are the casket flags of American veterans, donated by their families. Each ceremony honours one veteran, and the flag being lowered is that person’s. It’s a tradition that’s been running for more than fifty years.

Arrive by 6:30pm in July and August. The crowd builds, the good spots along the pebble line go early, and this isn’t an event you want to watch from behind a row of shoulders.

The 2026 schedule

Always 7:00pm. Always free. Note that the flag ceremony schedule and the sunset do not line up — in high summer the sun sets well after seven, so a ceremony night means you can do both with time in between for the beach and the shops.

Don't swim here — and why

The gift shops and what else is on site

There’s a small cluster of Sunset Beach Gift Shops at the end of Sunset Boulevard, right by the car park and the flagpole. This is where you’ll find Cape May diamonds cut, polished and set into jewellery, which is worth ten minutes even if you’re not buying — it tells you what to look for back on the pebbles.

Expect the usual shore-shop stock alongside it. It’s a long-standing independent operation, not a chain, and it’s one of the reasons the site has stayed free to visit.

Beyond the shops and the beach there isn’t much on site. Food service here is limited and seasonal, so don’t drive out at 6:30pm assuming dinner.

The beach and car park stay open and free; the shops keep shorter hours than the sunset does.

Parking, tags and timing

Parking is free. No meters, no ParkMobile, no app. It fills on summer ceremony nights and on any evening with a good forecast, so arriving 30 to 45 minutes before either sunset or a 7pm ceremony is the difference between parking and circling.

No beach tag is required. Not in June, not in August, not ever. If someone tries to sell you one, you’re at the wrong beach. Sunset Beach is in Lower Township, where nowhere requires tags — the same rule that covers North Cape May, Villas and Cape May Beach. Full explanation of the three separate tag systems around Cape May is on our beach tags and beaches page.

Best time to arrive: low tide for the diamonds, an hour before sunset for the light, 6:30pm for a ceremony night. If you can get all three on one evening, do that.

Getting here: head west on Sunset Boulevard out of Cape May and keep going until the road ends. Cape May’s free shuttle doesn’t come out here — it runs 4pm to 10pm within the city — so you’ll want a car or a bike.

What to combine it with

Sunset Beach on its own is about forty-five minutes, an hour if you’re hunting pebbles properly. Stack it with what’s nearby.