Some national parks take "off the beaten path" to a whole new level. There are no roads or bumper-to-bumper traffic leaving you at a trailhead. The only way in? By boat or seaplane. Sounds pretty cool, right?

Dry Tortugas National Park

About the Park

If you've never heard of Dry Tortugas National Park, you're not alone. Sitting about 70 miles west of Key West is this remote group of seven islands. It feels like a hidden corner of Florida that most people never get to experience. There are no roads or bridges leading there, so your only options are to go by boat or seaplane.

What Makes It Unique

Here's what makes this place so incredible: 99% of the park is actually underwater. It also happens to sit right alongside the world's third-largest barrier reef, so the snorkeling and diving here are on another level. You'll find plenty of coral, tropical fish, sea turtles, and all kinds of marine life. And often, much larger versions of fish compared to anywhere else in the Keys. 

Keep in Mind

One quick reminder: admire the park’s natural and cultural treasures, but leave them exactly as you found them. Coral, reef fish, and cultural artifacts are protected by law. Even brushing against coral can kill it, and touching marine life may put you near potentially dangerous species, such as jellyfish and sea urchins. 

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Isle Royale National Park

About the Park

If you're looking to truly unplug, Isle Royale National Park is hard to beat. Located in the middle of Lake Superior near the Canadian border, this park is made up of about 450 islands and is only open to visitors from April through October.

What Makes It Unique

Getting there is r adventure in itself. Most visitors travel by ferry or seaplane from mainland Michigan or Minnesota, while experienced boaters may make the trip in their own boats. Lake Superior can be unforgiving, so this route is best left to those with the right skills and preparation.

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Because reaching Isle Royale requires extra effort, it's one of the least-visited national parks in the country. The upside? Fewer crowds. It’s great for hiking, kayaking, fishing, and especially diving. In fact, Lake Superior has some of the best freshwater shipwrecks in the world. 

Keep in Mind

One thing to keep in mind: this is a true wilderness experience. Cell service is extremely limited, there are no cars on the island, and amenities are few and far between.

Channel Islands National Park

About the Park

When most people think of California's national parks, Yosemite and Death Valley usually come to mind. But tucked just off the Southern California coast is one of the state's best-kept secrets: Channel Islands National Park.

What Makes It Unique

Often called the "Galápagos of North America," the park is made up of five islands scattered 20 to 70 miles offshore. Since there are no roads or bridges connecting them to the mainland, the only way to get there is by ferry or private boat. 

The moment you arrive, it feels like you've entered another world. You can spend the day hiking coastal trails, paddling through sea caves by kayak, or snorkeling in kelp forests. And don’t forget to keep an eye out for all the dolphins, seals, sea lions, and migrating whales! This park is excellent for whale watching. 

Keep in Mind

Just like Isle Royale, these islands are completely undeveloped. Bring everything you'll need for the day, including food, water, and any gear you plan to use. It's also worth keeping an eye on the forecast before you go. This stretch of California is known for its strong winds and rough waters, which can affect ferry schedules.