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Hilton Head Island Dolphin Boat Cruise (opens in a new tab)
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Historic site
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An 1862 gun battery on a bluff over Skull Creek, inside a gated community — you need a pass at the gate to see it.
Fort Mitchel sits on a low bluff above Skull Creek, on the island's western shore, where the Intracoastal Waterway squeezes between Hilton Head and Pinckney Island. It was laid out in late 1861 and early 1862, in the months after the Union fleet took Port Royal Sound, and its job was straightforward: stop Confederate gunboats working up from the Savannah River and getting behind the enormous Union base being built on the island's south-eastern shore.
Construction was supervised by Captain Quincy A. Gillmore, later a general and one of the more consequential engineers of the war. The design was a lunette — an open-backed work with two faces and two flanks — built the way this coast allowed, with palmetto logs revetting the walls and earth heaped over them. Palmetto is a peculiar material: it is spongy, absorbs shot rather than splintering, and it is on the South Carolina state flag precisely because of what it did to British cannonballs at Fort Moultrie in 1776. The work mounted at least five guns.
It was originally named Fort Gillmore for its engineer, and renamed Fort Mitchel for Major General Ormsby M. Mitchel — the same officer whose brief command on this island produced the town of Mitchelville on the far shore. Union troops abandoned it in 1864 as the threat receded.
What survives is unusually good: the earth profile of the lunette, the remains of the bombproof (the covered magazine and shelter), and the ditch. A short boardwalk-and-path system with interpretive markers runs through the works, and there are open views over Skull Creek toward Pinckney Island National Wildlife Refuge.
The catch is access. Fort Mitchel is preserved as a small park inside Hilton Head Plantation, a gated residential community, and you cannot simply drive up. Non-residents have to be cleared through the community's security gate, and the arrangements for that have changed over the years.
Fort Mitchel is inside Hilton Head Plantation, the gated community occupying the island's north-west corner between US-278 and Skull Creek. Access is through the community's security gate, and non-residents need to be cleared through it — ring ahead and ask what the current visitor policy is rather than turning up hopefully.
Once inside, the fort is a short drive on the community's internal roads toward the Skull Creek shore, with a small parking area and a signposted path. The simplest alternative is to join one of the scheduled guided tours run by the island's heritage organisation, which handles access for you.
This is the single thing to sort out before you set off. Hilton Head Plantation is a private gated community, and Fort Mitchel is inside it. There is no public car park and no way in on foot from US-278.
Historically, day visitors could request a pass at the community's main security gate on the north end, explaining that they were visiting the fort. That has not always been reliable, and gate policy at any of the island's private communities can tighten without notice. Call ahead — either the community's security office or the island's heritage organisation — and ask what the current arrangement is before driving up. Being turned away at a gatehouse is an avoidable disappointment.
The dependable alternative is a guided tour. The island's heritage library has long run scheduled tours of Fort Mitchel, which solves the access question entirely and gets you a guide who knows the engineering. Tours run seasonally rather than daily and book out; check their programme before your trip.
If neither works, Fort Howell on Beach City Road is free, open daily, needs no pass, and is arguably the more significant of the two forts.
The lunette's profile is clear on the ground: two faces angled toward the creek, flanks running back, and a ditch outside. The most interesting single feature is the bombproof — the earth-covered shelter and magazine, dug in and roofed over, where the garrison sheltered under fire and the powder was kept.
Interpretive markers along the path explain the plan, the armament and the reason for the position. Take the time to look out over Skull Creek from the parapet: this is the Intracoastal Waterway, the channel is narrow, and the tactical logic of putting five guns exactly here is immediately obvious. Across the water is Pinckney Island National Wildlife Refuge, which in 1862 was a cotton plantation.
Because it sits inside a maintained residential community, the site is tidier and easier underfoot than Fort Howell, with cut grass and defined walkways. It is also smaller. Allow around 30 minutes.
On 7 November 1861 the Union navy forced the entrance to Port Royal Sound, one of the deepest natural harbours on the eastern seaboard, and took Hilton Head. It was among the earliest Union amphibious successes of the war and it handed the North a base for the blockade of Charleston and Savannah for the next four years. At its height the base and its supporting camps held tens of thousands of people.
A ring of earthworks went up across the island to protect that base. Fort Mitchel covered Skull Creek to the west; Fort Walker, the captured Confederate work, sat on the ocean shore and was renamed Fort Welles; Fort Howell went up in 1864 inland to the north-east, built by the 32nd United States Colored Infantry, to cover Mitchelville.
Three forts, three different jobs, and between them the outline of what the island was for between 1861 and 1865. Fort Mitchel is the one that explains the water.
Operators run these trips past Fort Mitchel, or stop there as part of a longer route. We list what the booking data supports — not everything that mentions the name.
These bookings run through Viator, who pay us a commission. Your price does not change, and neither does the order they appear in.

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Historic site
A shell embankment thrown up around a fortified village six centuries ago, three acres off Squire Pope Road. Nearly always empty.
20–45 minutesFree. A state heritage preserve with no ticketing and no staff on site.0.9 mi away

Wildlife
Four thousand free acres on the causeway, wading birds by the hundred at Ibis Pond, and not a restroom or water tap anywhere.
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Sixty-eight acres of marsh boardwalk, live oak allee and camellia garden, free to walk, with the island's best interpretation indoors.
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Yes, but not spontaneously. The fort is inside Hilton Head Plantation, a gated residential community, so you have to be cleared through the security gate. Non-residents have historically been able to request a visitor pass at the gatehouse, but policy changes, so call ahead. The reliable route is a scheduled guided tour run by the island's heritage organisation, which handles access.
The earth profile of an 1862 lunette on a bluff above Skull Creek, the remains of the bombproof — the covered magazine and shelter — the ditch, and interpretive markers along a short path. The view over Skull Creek toward Pinckney Island National Wildlife Refuge explains the fort's purpose better than any panel: the channel is narrow and the guns covered it.
It was originally Fort Gillmore, named for Captain Quincy A. Gillmore, the Union engineer who supervised its construction in early 1862. It was later renamed for Major General Ormsby M. Mitchel, the officer who, in September 1862, set aside the land on the island's far shore that became Mitchelville, the first self-governed town of formerly enslaved people in the United States.
Different dates, different jobs, different access. Fort Mitchel is an 1862 open-backed gun battery on Skull Creek, built to stop Confederate gunboats, and sits inside a gated community. Fort Howell is an 1864 enclosed pentagonal earthwork built by the 32nd United States Colored Infantry to defend Mitchelville, and it is free and open daily on Beach City Road. If you can only do one, do Fort Howell.
Because it works and because it was to hand. Palmetto is fibrous and spongy rather than brittle, so it absorbs shot instead of splintering — the property that made Fort Moultrie's palmetto walls famous in 1776 and put the tree on the South Carolina flag. At Fort Mitchel the logs revetted the earthwork, with sand and earth heaped over them.