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Wild feral horses grazing in golden marsh grass in front of the ruined brick chimneys of the Dungeness mansion on Cumberland Island

National Park Service · Georgia

Cumberland Island National Seashore

Georgia's largest barrier island, reachable only by a reserved passenger ferry from St. Marys, with wild horses, oak-shaded trails, and 17 miles of undeveloped beach.

The Cumberland Island passenger ferry crossing calm coastal water from St. Marys, Georgia, toward the wooded barrier island under soft morning light

Field briefing

Cumberland Island National Seashore starts with access, not mileage.

Before you go

There is no bridge to Cumberland Island.

Nearly every visitor arrives on the Cumberland Island Ferry from St. Marys, and both the boat and the island are capacity-limited, so the round-trip ferry reservation is the single thing to book first. Ferry tickets and your $15 entrance fee are separate, the boat runs seven days a week from March through November and only five days (Thursday through Monday) in winter, and the last return leaves in the afternoon, so a missed boat means a missed plan. There are no stores, no food service, and limited water on the island, so carry in everything you need for the day.

Best window
March to May and October to November for mild weather and lower bug pressure
Signature routes
Dungeness ruins and the wild horses, Sea Camp Beach and the dune crossing
Pack focus
Water, weather checks

The landmarks worth the trip. Tap any photo to enlarge.

Location
Georgia
Established
1972
Size
36k acres
Best time
March to May and October to November for mild weather and lower bug pressure
Entrance
$15 per person entrance fee, plus a round-trip ferry ticket booked separately (about $44 adult, $42 senior, $34 youth)
Nearest airport
Jacksonville (JAX) about 1 hour to St. Marys; Brunswick (BQK) about 1 hour

When to go

Weather, crowds, and what the season changes about the trip.

Spring

High crowds

Warm, breezy days with blooming maritime forest and rising humidity by late May.

Pack Booked ferry slot, sun protection, and bug spray for the marsh edges.

Summer

Moderate crowds

Hot, humid, and buggy, with afternoon thunderstorms and strong sun on the open beach.

Pack Lots of water, sun shirt, insect repellent, and a hat for shadeless beach miles.

Fall

High crowds

Mild and clear once humidity drops, often the most comfortable hiking weather of the year.

Pack Layers for cool mornings, a booked ferry, and shoes for sandy mixed terrain.

Winter

Low crowds

Cool and quiet, with chilly mornings, a reduced five-day ferry schedule, and few visitors.

Pack Warm layer, wind shell, and a confirmed ferry day since runs pause midweek.

Top things to do

  • Dungeness ruins and the wild horses

    The burned Carnegie mansion, surrounded by the feral horses Cumberland is famous for, a short walk from the Sea Camp dock.

  • Sea Camp Beach and the dune crossing

    The closest stretch of empty Atlantic beach to the dock, reached on a flat boardwalk through live oaks and palmetto.

  • Plum Orchard mansion

    A grand Carnegie estate deep on the island, reachable by a long bike or hike, or a separate ferry add-on on select days.

How long to spend

Anchor the day around Dungeness ruins and the wild horses

Put the access rule first: shuttle, parking, timed-entry, or reservation windows should decide the order of the day. For one day in Cumberland Island National Seashore, make Dungeness ruins and the wild horses the non-negotiable, add Sea Camp Beach and the dune crossing only if the first stop runs clean, and keep Plum Orchard mansion as the flexible finish.

  1. 1Start with Dungeness ruins and the wild horses: The burned Carnegie mansion, surrounded by the feral horses Cumberland is famous for, a short walk from the Sea Camp dock.
  2. 2Add Sea Camp Beach and the dune crossing: The closest stretch of empty Atlantic beach to the dock, reached on a flat boardwalk through live oaks and palmetto.
  3. 3Use Plum Orchard mansion as the optional finish, not as a reason to rush the whole day.

Plan your trip

Turn Cumberland Island's conditions into water, pack, and sleep-system decisions.

An empty wide undeveloped Atlantic beach with windblown dunes and sea oats on Cumberland Island at low tide

Build around access

Plan the transfer before the trail list.

Plan your trip

4 quick tools, already seeded for Cumberland Island National Seashore. Tune the route, pack weight, weather margin, and overnight setup after the access plan is real.

  1. 01Size your water for a mild day on the trail
  2. 02Dial in your pack base weight before you load up
  3. 03Find the pack size a multi-day trip here needs
  4. 04Check you will sleep warm down to about 30F

What to pack

Start with the gear decisions this park changes: footing, weather, camping, and water.

Pack planning

Decide what Cumberland Island National Seashore asks of your kit before you start checking boxes.

Use this as a constraint check while you are still shaping the trip. The active checklist becomes useful once your route, dates, and sleep plan are set.

  • First constraintHydration and exposureWater, Electrolyte mix, hat, sunscreen, sunglasses, 4 more
  • Route realityFooting and tractionHiking boots, Hiking socks, Trekking poles
  • Load choicePack and carry systemBackpacking pack
  • If overnightSleep and shelterBackpacking tent, Sleeping bag, Sleeping pad, 1 more

Checklist mode

24 items, grouped for the trip you are actually taking.

  1. Dates and season are set.
  2. Primary route, campground, or lodge is chosen.
  3. Water, footwear, and overnight needs are sized.

Gear for Cumberland Island

The buying guides that match what Cumberland Island asks of your kit, with our current top picks across budget and use case.

Where to stay

Most visitors base in St. Marys, the small ferry-port town on the mainland, which has inns, motels, and restaurants within walking distance of the dock and the visitor center. The historic Greyfield Inn is the only lodging on the island itself, a private Carnegie estate with its own boat and a premium all-inclusive rate. Campers stay on the island at Sea Camp (developed, near the dock), Stafford Beach (a 3.5 mile walk in), or the primitive backcountry sites farther north.

Camping reservations

Camping reservations

Camping needs two reservations that must line up: a Recreation.gov campsite and a ferry day that matches it.

Cumberland Island camping is genuinely planned, not spontaneous. You reserve a campsite on Recreation.gov, then reserve a ferry crossing on a day that fits your nights, and you carry in all food and most water. Sites at Sea Camp book out months ahead for good weekends.

Reviewed June 11, 2026

Booking window

Campsites open up to 6 months in advance on Recreation.gov; ferry tickets are booked separately and should be reserved as early as possible.

  • Sea Camp is the developed campground nearest the dock; Stafford Beach is a 3.5 mile walk from the dock.
  • Backcountry sites (Hickory Hill, Yankee Paradise, Brickhill Bluff) are fully primitive with no toilets and no potable water.
  • Your ferry day must match your camping nights, and the ferry, not a campsite, is the thing that fills first.
  • Carry in everything: there is no store, no food service, and limited or no treated water at the backcountry sites.

Where to book or verify

Reserve Cumberland Island camping

Official Recreation.gov booking for Sea Camp, Stafford Beach, and backcountry sites.

Reserve the Cumberland Island Ferry

The concession ferry from St. Marys; the trip does not happen without this seat.

Search Recreation.gov

Check for federal campground, backcountry, tour, and permit inventory tied to this park.

Campgrounds to know

Sea Camp Campground

Details
Season
Year-round
Sites
Developed walk-in tent sites with restrooms, drinking water, and cold showers.
The closest campground to the Sea Camp dock and the easiest first night on the island.

Stafford Beach Campground

Details
Season
Year-round
Sites
Walk-in sites a little over 3 miles from the dock, with a cold shower and water.
A quieter step up the island for hikers willing to carry gear in from the boat.

Getting there and practical info

Wild feral horses grazing in golden marsh grass in front of the ruined brick chimneys of the Dungeness mansion on Cumberland Island

Make the transfer plan before the trail plan.

Weather windows, boat schedules, flight buffers, and backup days shape what is realistic.

Getting there

Get to Cumberland Island National Seashore by solving the transfer first.

Nearest airport
Jacksonville (JAX) about 1 hour to St. Marys; Brunswick (BQK) about 1 hour
Access rhythm
Transfer time matters
Region
Georgia
  1. Arrival note

    The island is reached from St. Marys, Georgia, about an hour from Jacksonville.

  2. Transfer plan

    Park in St. Marys, check in at the mainland visitor center to pay your entrance fee, then board the reserved Cumberland Island Ferry for the 45 minute ride to the Sea Camp dock.

  3. Transfer plan

    There is no vehicle access and no bridge, and private boats may land but everyone still pays the entrance fee.

Pair this with lodging: the best base is the one that protects the departure window, pickup point, or weather buffer.

LocationGeorgia

Frequently asked questions

Do you need a reservation to visit Cumberland Island?

You need a ferry reservation. The island has no bridge, so almost everyone arrives on the Cumberland Island Ferry from St. Marys, which is capacity-limited and should be booked first. Day visitors do not need a separate access permit beyond the ferry seat and the $15 entrance fee.

How much does it cost to visit Cumberland Island?

There is a $15 per person entrance fee plus a round-trip ferry ticket, which runs about $44 for adults, $42 for seniors, and $34 for youth. The entrance fee and the ferry are paid separately.

Can you camp on Cumberland Island?

Yes, but it takes two reservations that must match: a campsite on Recreation.gov (Sea Camp, Stafford Beach, or a primitive backcountry site) and a ferry day that lines up with your nights. Sea Camp books out months ahead for good weekends.

Are there really wild horses on Cumberland Island?

Yes. A free-roaming herd of feral horses lives across the island and is often seen around the Dungeness ruins near the south-end dock. They are wild animals, so keep your distance and never feed them.

Keep planning