Boating in South Carolina: Lakes, Rivers & Inshore

Who needs a boater education card

If you were born after July 1, 2007, you need one of these to drive a boat with an engine of 10 horsepower or more, a jet ski, or a specialty propcraft (a jet-ski-style craft with an outboard or propeller motor):

• A South Carolina boating safety certificate. Nonresidents can use one issued by another state.
• A US Coast Guard vessel operator license or merchant mariner credential, even an expired one.
• A boat rental safety certificate, on a rental.
• An adult (18 or older) aboard who was born on or before July 1, 2007, or who holds one of the first two credentials.

SCDNR’s six-hour classroom course is free, and any NASBLA-approved online course counts. Find a class on the SCDNR boater education page or call 800-277-4301. Skipping it costs a $50 to $300 fine: not a crime, just an expensive lesson.

Life jackets: who wears one, who carries one

Every boat must carry a US Coast Guard approved wearable life jacket for each person on board or being towed, sized right, in good shape, and easy to reach. Boats 16 feet and longer also need a Type IV throwable, like a ring buoy or a cushion.

These folks must wear theirs:

• Kids under 12 on any motorboat under 16 feet long.
• Everyone on a jet ski or specialty propcraft.
• Anyone water skiing, tubing, or riding anything towed.

Short one at the landing? SCDNR’s free Zippit loaner boards at some landings hold kid and adult sizes. Borrow one, bring it back.

Registration basics

Any boat with a motor must be registered with SCDNR, even a kayak with a little trolling motor. Paddle craft and sailboats with no motor skip it.

• Keep the registration card aboard, and the number and decals on both sides of the bow.
• A new registration is $10 and renews every year. Unpaid property taxes on the boat block renewal.
• Boats (not paddle craft) and outboards of 5 horsepower or more also need a $10 title. Apply within 30 days of buying.
• Registered in another state? You can use South Carolina waters for up to 60 days in a row.

From January 1, 2027, outboards of 5 horsepower or more get their own $10 yearly registration instead of a title.

Boating under the influence

It’s illegal to run a moving motorboat, jet ski, or sailboat under sail when alcohol or drugs have impaired your ability to operate it. At 0.08 blood alcohol or higher, a court can infer you were under the influence.

• Refuse the breath test, and SCDNR suspends your boating privileges for 180 days.
• A first conviction brings a $200 fine or 48 hours to 30 days in jail, a six-month boating ban, an alcohol and drug safety program, and a boating safety course.
• Seriously injure or kill someone, and it’s a felony with mandatory prison time.

Pick your sober skipper before the cooler opens.

Jet skis, wakes, and slow zones

Jet skis come with extra rules, and owners can’t knowingly let anyone break them. Everyone aboard wears a life jacket, nobody rides between sunset and sunrise, and the engine cutoff lanyard must work and be clipped to the rider, their clothes, or their life jacket.

For every boat:

• On the big lakes named in the law, including Hartwell, Jocassee, Keowee, Marion, Murray, Thurmond, and Wateree, go idle speed within 100 feet of a dock, pier, or bulkhead, and within 50 feet of an anchored or moored boat or anyone in the water. Most other waters use 50 feet for all of those, plus idle speed within 100 yards of the Atlantic shoreline.
• Jumping another boat’s wake within 200 feet of it is reckless operation.
• No wake surfing within 200 feet of docks, moored boats, or swimmers.
• Towing a skier or tuber takes a wide-angle mirror or a spotter, and no towing between sunset and sunrise.
• Don’t chase or harass wildlife.

Where to boat: the big lakes

• Lake Murray. Dominion Energy’s lake in the Columbia area covers about 50,000 acres with 650 miles of shoreline. Pontoon heaven.
• Lakes Marion and Moultrie. The state’s largest and third-largest lakes cover 160,000 acres together, with 21 public boat landings. Santee Cooper warns that submerged trees and stumps are a hazard outside the marked channels. Lake info: 800-92-LAKES. Anglers, read Fishing Santee Cooper.
• Lake Hartwell. Nearly 56,000 acres and 962 miles of shoreline, run by the Army Corps of Engineers.
• Lake Thurmond. The largest Corps of Engineers lake east of the Mississippi: 70,000 acres and 1,200 miles of shoreline, with excellent striper fishing.
• Lake Keowee. About 17,700 acres and 388 miles of shoreline, run by Duke Energy.
• Lake Jocassee. About 7,980 acres. Duke runs it as a pumped-storage lake that can be drawn down as much as 30 feet, so check the level before you tow, and read Where to Swim on Lake Jocassee before anyone jumps in.
• Lake Wateree. Lake Wateree State Park puts you on the 13,800-acre lake with a two-lane ramp, a tackle shop, and a fuel dock.

Duke Energy posts lake levels and scheduled flow releases online. Still choosing? See Every Major Lake in South Carolina, Ranked.

Rivers: know who runs the dam

Water released from a dam can raise a river fast, so learn how the dam upstream warns you.

• Lower Saluda River. Below Lake Murray, Dominion Energy calls, emails, or texts anyone signed up for Lower Saluda River alerts when it releases more than the minimum flow. Sirens and strobe lights mean the river will rise within minutes.
• Savannah River. The Corps posts generation schedules for the Hartwell, Russell, and Thurmond dams. Below Hartwell Dam, air horns sound for one minute before a release. Get to the bank.
• Cooper River. The Pinopolis Lock lifts or lowers boats 75 feet between Lake Moultrie and the Tailrace Canal, from 9 a.m. to 30 minutes before sunset, for motorboats 10 to 150 feet long. Watch for manatees in the canal, and tell the lock operator if you spot one.

Rather paddle? Our Kayaking hub covers the quiet rivers.

Inshore and the Intracoastal Waterway

The Atlantic Intracoastal Waterway runs 237 miles through South Carolina, and the Corps maintains 212 of them, from the North Carolina line to Port Royal Sound near Hilton Head.

Salt water adds two bosses: tide and current. In Charleston Harbor the tide rises and falls a little over 5 feet on an average day, plenty to leave you sitting on a mud flat. Carry a chart and a tide table, and respect the no-wake zones. Fishing or crabbing from the boat? See our Fishing hub and our Crabbing, Shrimping & Oystering hub.

Where to launch

Our Boat Ramps on South Carolina’s Big Lakes guide covers where to launch, fees, and ramp etiquette. Three ramp laws to know:

• Don’t block a ramp, a dock, or the way in. Unattended boats and trucks that do can be removed at the owner’s expense.
• At public ramps the power companies own or maintain on their hydro lakes, like Duke Energy’s and Dominion Energy’s, no swimming within 50 feet and no wake within 200 feet.
• Since May 15, 2026, no swimming within 50 feet of Santee Cooper’s public ramps where signs say so.

Renting a boat

Renting is the easiest way onto the water, and A Pontoon Day on Lake Murray walks you through a full day on a rental. Born after July 1, 2007? A boat rental safety certificate from an SCDNR-approved course covers you for 30 days, on rentals only. By law, the rental business can’t send you out unless the boat is sound, registered, and numbered, with the required safety gear aboard. Count the life jackets before you leave the dock, kid sizes included.

Stay safe out there

• Watch the sky. The National Weather Service says most lightning deaths and injuries on boats happen on small boats with no cabin. If storms are forecast, don’t go out. Caught out and can’t reach land? Drop anchor and get low. When thunder roars, get off the water, and wait 30 minutes after the last rumble.
• Respect cold water. Water of 50 to 60 degrees can cause cold shock as dangerous as 35-degree water, and the gasp reflex can hit at 77 degrees. A life jacket you’re actually wearing buys time.
• Know the dams. Duke Energy says to stay out of tailraces and 300 feet from dams and powerhouses, upstream and down. A flashing red beacon or a horn means rising water.
• Leave a float plan. Tell someone where you’re going and when you’ll be back.

Boating for every body

Boating can be one of the easiest ways to get outside: you sit, the boat does the work, and the scenery comes to you. Getting aboard is the hard part. Ramps can be steep and slick and floating docks move, so ask the marina or park for the easiest boarding spot. A pontoon’s flat, open deck is often the simplest ride for a mixed group.

In Charleston, the nonprofit Adaptive Expeditions runs adaptive paddlesports programs for people with physical and sensory disabilities. SCDNR’s loaner boards show how to fit a life jacket, with pictures and instructions in English and Spanish. More ideas are in our Accessibility Guide.

Now go outside and play. Life jackets on.