This Riviera Beach, Florida Island Hides A Sealed Presidential Bunker From The Cold War

A secret fallout shelter was built for President John F. Kennedy on a small island. It went up in 1961, and crews finished it in just days.

The bunker sat hidden under a mound of earth near his winter home in Palm Beach. Kennedy never had to use it. Today, Palm Beach County is moving forward with plans to restore it, and its doors have stayed closed to visitors for years.

I love that this island in Florida pairs Cold War mystery with clear water and tropical fish. You can only get there by boat. That makes every trip feel like a small adventure.

The snorkeling alone gets plenty of attention. Then you add iguanas, campsites, and a brick path that loops the whole island. So what else is waiting out there beyond that sealed door?

A President’s Secret Shelter Sits Under Your Feet

Back in December 1961, the U.S. Navy quietly built a fallout shelter on Peanut Island Park for President John F. Kennedy. His family spent winters nearby in Palm Beach, so the shelter kept him close to safety.

The crew reportedly worked fast and kept the project under wraps. For years, few people outside the government even knew the shelter existed.

Inside, the bunker was stocked to support the president, his family, and staff for a stretch of time. It had supplies, communication gear, and a decontamination area. Kennedy never needed it, which is the best kind of ending for a shelter story.

Later, the bunker became a small museum run by a local maritime group. It closed years ago, and the county has been working on restoring it. Right now, the doors stay shut to the public.

That might sound like a letdown, but it adds to the mystery. You can still walk the island and see the area around this famous slice of Cold War history. Keep an eye on Palm Beach County park news for updates on when tours might return.

Your Ride Over Is Part Of The Fun

No bridge reaches this island. Getting there means hopping on a boat, and that’s half the charm.

Most visitors take a water taxi or ferry from the mainland. The ride is short, and it gives you a view of the Port of Palm Beach along the way.

Plenty of people also arrive by private boat, kayak, or paddleboard. The island has a dock area, so boaters have spots to tie up. Paddlers often launch from nearby shores and make the crossing themselves.

Timing matters here. Ferries stop running at a set hour in the late afternoon, and the park itself closes in the evening for day visitors.

A smart plan is to grab an early boat and give yourself a full day. Then pack up well before the last trip back. Missing your ride would turn a fun outing into a very awkward phone call.

Check the ferry operator’s schedule before you go. Hours can shift with seasons and weather. A little planning keeps the day relaxed and stress free from start to finish.

Bring A Mask Because The Fish Put On A Show

Snorkeling is the big draw at Peanut Island Park, and it’s easy to see why. The island sits close to the Lake Worth Inlet, where ocean water flows in.

That flow brings clearer water and lots of marine life. Rocky areas and artificial reefs near the shore give fish plenty of places to hang out.

Tides make a real difference. Incoming and high tide usually bring the clearest water, so check a tide chart before you go.

Currents near the inlet can get strong. Stay near the shore, swim with a buddy, and keep a safe distance from the rocks. Lifeguards are not always on duty, so you’ll want to play it safe.

Gear is your job, so pack a mask and snorkel before leaving home. Some people like fins for extra control in moving water. Water shoes also help, since rocks along the edges can be sharp.

Once you’re floating over the reef, the rest of the world gets quiet. Bright fish dart around below you. It’s a pretty great reward for a short boat ride.

Walk The Loop And Count The Iguanas

About a mile of brick walkway wraps around the whole island. It’s flat, easy, and lined with water views on nearly every side.

Benches and shaded picnic spots pop up along the way. You can stroll the full loop at a slow pace and still have time for a swim.

Wildlife shows up often on this walk. Big green iguanas are a common sight, and they seem perfectly happy sunbathing near the path. Wading birds hunt in the shallows, too.

A boardwalk area also passes through mangroves. These salty-water trees protect shorelines and give young fish a safe place to grow.

Shade gets scarce in some spots, so a hat and water bottle are good friends here. Florida sun does not mess around, even in cooler months.

Leashed dogs are welcome in designated areas of the park, so your pup can join parts of the visit. Just keep the leash on the whole time, because rangers do enforce the rule. A slow loop with good company makes a nice break between beach sessions. The iguanas won’t mind the audience one bit.

Sleep Under The Stars On An Island

Here’s a fun twist: you can actually camp overnight on this island. Peanut Island Park has a campground with tent sites, and reservations are required.

Once the day crowd heads home, the island gets a whole lot quieter. Camping lets you enjoy evening breezes and city lights glowing across the water.

Campers get access to restrooms with showers. Sites usually include grills and picnic tables, so cooking dinner outdoors is part of the plan.

Keep expectations simple, though. Campsites do not have electricity, so bring lanterns and charged power banks. The park also limits tents per site, which keeps things fair for everyone.

Since you’ll need a boat to reach the island, pack smart. Bring only what you can carry on the ferry or your own vessel. Coolers, chairs, and bedding add up fast.

Book through Palm Beach County Parks well ahead of time, especially for weekends and holidays. Spots can go quickly. Waking up to water views on a Florida island is a pretty special morning alarm.

Pack A Cooler Because There Is No Snack Shack

Hungry visitors, take note. The island has no restaurants or snack stands, so whatever you want to eat must come with you.

That makes a packed cooler your most important travel buddy. Sandwiches, fruit, chips, and plenty of water will carry you through a long beach day.

Luckily, Peanut Island Park makes picnics easy. Covered picnic areas and tables sit around the island, and grills are available for cookouts. Shade pavilions also offer a cool break when the afternoon gets steamy.

On busy days, food boats sometimes pull up near the shore. Still, you shouldn’t count on them, since they aren’t run by the park.

Trash cans sit along the paths, so cleanup is simple. Please use them, because nobody wants a messy island. Keep an eye on snacks, too, since curious wildlife may want a taste.

Plan your menu around a cooler that’s easy to carry on and off a boat. Wheels help a lot. A well-packed lunch with a water view is honestly hard to beat.

Your Beach Day Comes With A Sandbar Bonus

Soft sand, clear water, and palm trees make the island’s beaches feel far from city life. Some people say parts of it remind them of the Bahamas.

The beaches work well for swimming, sunbathing, and shell hunting. Kids can build sandcastles while adults stretch out on towels with a book.

Just off the island, a popular sandbar draws boaters on sunny days. Folks anchor, wade around, and paddle nearby. It adds a lively feel to the waters around Peanut Island Park.

Kayaking and paddleboarding are also big here. Calm stretches of the lagoon make for pleasant paddling when the wind cooperates.

Shade near the water can be limited. Bring a beach umbrella or pop-up shade, plus reef-safe sunscreen.

Weekends can get busy, so arriving early helps you grab a good spot. Weekdays usually feel calmer. Either way, bring a bag for collecting a few shells as a souvenir. Just leave any live creatures right where you found them.

An Old Coast Guard Station Has Stories To Tell

Kennedy’s shelter isn’t the only piece of history out here. The island also holds a former U.S. Coast Guard station built in the 1930s.

For years, the building housed a maritime museum alongside bunker tours. Both eventually closed, and the station is part of Palm Beach County’s planned historic-area restoration.

Fun fact: the island itself is man-made. It formed in the early 1900s from sand dredged when the Lake Worth Inlet was cut and deepened. Workers kept adding material over the years, and the island slowly grew.

The name has a story, too. An early plan to ship peanut oil from the island gave Peanut Island its name, even though that business never took off.

So the next time you stroll past the old station, remember the island’s quirky past. It started as leftover sand, grew into a park, and once guarded a president.

Watch for updates from the county about restoration progress. When the historic sites reopen, they’ll add even more reasons to make the trip over.

Plan Smart And The Island Pays You Back

Officially, the park sits at 6500 Peanut Island Rd, Riviera Beach, FL 33404. Don’t try plugging that into your car, though, since boats are the only way in.

The island covers about 80 acres in the Lake Worth Lagoon, right near the Palm Beach Inlet. It’s run by Palm Beach County Parks and Recreation.

A few easy tips make your visit smoother. Check the tide chart for the best snorkeling, and check the weather for afternoon storms. Florida summers love a surprise downpour.

Pack water shoes, sunscreen, shade, food, and plenty to drink. Restrooms are available, but shopping is not.

Arrive early for a calmer start and better parking near the ferry docks. Then leave with time to spare before the last boat back.

Peanut Island Park packs a lot into a small space. You get history, reefs, beaches, trails, and camping all in one place. Even with the bunker still sealed, Florida doesn’t offer many day trips quite this unusual. Grab your snorkel and go see it for yourself.