First, do you legally need this?
South Carolina requires anyone born after July 1, 2007 to pass an approved boater education course before operating a boat or personal watercraft powered by 10 horsepower or more, and to carry the boater education card on the water. Everyone else is exempt on paper, and exactly as capable of hitting a sandbar in practice, so the course below is written for both of you.
Straight up: the test at the bottom of this page is practice, not the legal certificate. It uses the same pass bar and covers the same ground, so the real exam will feel familiar. The official card comes from a state approved course, and the BoatUS Foundation course is the free one SCDNR accepts.
Chapter 1. Know the boat you are standing on
Every rule that follows uses four words, so learn them once. The bow is the front, the stern is the back, port is your left facing the bow, starboard is your right. The helm is the wheel, the beam is the width, the draft is how much water the boat needs, and freeboard is the height of deck above the waterline, which is what overloading eats first.
- The capacity plate by the helm states the maximum people, weight and horsepower. Both numbers are limits, in any weather. Exceeding either is overloading.
- Hulls come in two working styles: planing hulls climb on top of the water at speed, displacement hulls push through it. Pontoons, the boat you will most likely rent here, sit in between: light, flat sided, slow to stop, and pushed around by wind at the dock.
- Engines: outboards hang on the transom and tilt up for shallow water, which is most of the local fleet. Sterndrives hide the engine inboard with a drive leg out the back and need their blower run before starting. Jet drives push water instead of spinning an open prop, and steer only under power.
- No brakes. You stop by pulling back to neutral early, then a short burst of reverse.
Trim is the running angle, set by where the weight sits and the tilt of the engine. Trim in for the launch out of the hole, then out in stages until the bow settles level, the wake flattens and the wheel goes light. Too far out and the bow porpoises; a touch back in cures it. Trimmed right, the same boat is faster, drier and cheaper to run.
Chapter 2. Before you leave the dock
Most bad days on the water were lost before the lines came off. The check takes five minutes.
- One USCG approved wearable life jacket per person aboard or being towed, sized to the wearer, in reach, not buried under the cooler.
- Children under 12 must wear a fastened life jacket on any vessel under 16 feet while underway. South Carolina law, not a suggestion.
- Boats 16 feet and over also carry a Type IV throwable, the cushion or ring, ready to grab, not zipped in a bag.
- A working fire extinguisher, marine Class B, the kind rated for fuel and engine fires, mounted where the helm can reach it without leaning across flames. Check the gauge; a dead extinguisher is ballast.
- A horn or whistle that works, and navigation lights you have actually switched on once. Lights are required sunset to sunrise and in poor visibility.
- The engine cutoff lanyard clips to the operator whenever the engine is running. If you go over, the boat stops instead of circling back at you.
- Fueling: everyone off the boat at the fuel dock if practical, engine off, no smoking, nozzle grounded against the fill to kill static. Afterward, open it up and sniff before you start. Fuel vapor is heavier than air and pools in the bilge; boats with enclosed engine spaces run the blower four full minutes first.
- Check the drain plug. Every ramp on the coast has watched a boat launch without it.
- Leave a float plan: tell somebody on land where you are going, how many aboard, and when you are due back. Rescue math is time math, and it starts hours earlier when someone knows to call.
- Check the marine forecast last thing before you leave, not the night before: the NOAA coastal waters forecast, the radar app of your choice, and one honest look at the western sky.
Chapter 3. Ramps, docking and handling lines
Boats are lost and friendships strained within fifty feet of a dock. The skills are simple; the discipline is doing them slowly.
- The ramp: rig, load and pull the straps in the staging area, not on the ramp itself. Lights unplugged before backing in, plug in, boat off quickly, then park the trailer clear. The ramp is a runway, not a parking lot, and Saturday morning traffic remembers.
- Docking approach: fenders over and lines led before the final turn. Come in dead slow, into whichever of wind or current is stronger, at the shallowest angle that works. Never approach a dock faster than you are willing to hit it.
- Work the throttle in short idle bursts, in and out of gear, rather than riding the power. Speed you never added is speed you do not have to lose against a piling.
- People are not fenders. Hands and feet stay inside the rail; a crew member steps ashore with a line when the gap closes to a step, not a jump.
- Cleating: a full turn around the base, two or three figure eights across the horns, finish with a locking hitch. Keep fingers from between line and cleat, and never wrap a loaded line around a hand.
- The three line jobs: bow and stern lines hold the boat to the dock; spring lines run diagonally and stop it surging fore and aft. To leave a dock the wind is pinning you onto, power gently ahead against an after spring and the stern swings out; back away clean.
- Tidal docks here rise and fall four to six feet. Leave slack for the drop, or use the floating docks that ride with it.
Chapter 4. Rules of the road
The Waterway on a July Saturday is crowded, and the rules exist so no two boats ever have to guess. One boat is the give way vessel and changes course early and obviously. The other is the stand on vessel and holds course and speed so it stays predictable. Whichever one you are, do your job and only yours.
- Sailboats under sail, kayaks and paddleboards are almost always the stand on craft over a powerboat. Give them room; they cannot dodge you.
- Keep a proper lookout at all times and a safe speed for the traffic, visibility and chop. On a crowded Saturday the safe speed is slower than the legal one.
- The horn is a language. One short blast: I intend to pass port to port. Two short: starboard to starboard. Three short: my engines are backing. Five or more short: danger, or I do not understand you. Agreement is answering with the same signal. A prolonged blast announces you at blind bends and when leaving a slip, and repeated prolonged blasts are your voice in fog.
- At night the lights talk instead. Green alone: you are seeing a boat's starboard side, and you are likely the stand on vessel. Red alone: you are seeing its port side, plan to give way. Red and green together: it is coming straight at you, alter to starboard.
- Bridges: the ICW's fixed bridges publish their clearance on tide boards; the swing bridges, Socastee's among them, open on request or schedule. Hail the tender on the posted VHF channel, wait your turn out of the channel, and give commercial traffic the right of way through the draw.
Chapter 5. Markers, charts and depth
Markers are the road lines, and around here the road is narrow. The channel is dredged; most of what is next to it is not.
- Red, right, returning. Coming in from open water, red markers stay on your right. Heading out, they flip to your left. Numbers count upward as you head in.
- Red markers are triangles and nun buoys with even numbers. Green are squares and cans with odd numbers.
- On the Intracoastal Waterway, aids also carry a small yellow triangle (treat as red) or yellow square (treat as green) for the Waterway route itself, whatever color the mark is.
- White buoys with orange marks are the regulatory set: a diamond warns of danger, a crossed diamond means keep out, a circle marks a controlled area, usually a speed or wake limit, with the restriction written inside.
- A diver down flag, red with a white diagonal or the rigid blue and white alfa flag, means people are under the surface. Slow right down and give it real distance.
- Charts: paper or app, the chart shows what the water hides: depths, channels, cables and every mark with its number. Depths are referenced to low water, and the bottom near inlets moves faster than surveys, so treat charted depth as a plan and the depth finder as the news.
Chapter 6. Anchoring, done properly
Anchoring looks like throwing metal overboard and is actually geometry. The angle of pull, not the weight of the anchor, is what holds the boat.
- Always from the bow. Anchoring by the stern points the boat's lowest, squarest end into current and waves. Boats swamp exactly that way every season.
- Scope is rode paid out relative to depth, counting the bow's height: 5:1 for a calm lunch, 7:1 when the wind is up or you plan to stop watching it. Short scope levers the anchor out of the bottom.
- Setting it: bow into the wind or current, lower, do not throw, fall back as you pay out, then snub the line and back down gently until the boat stops. Line up two landmarks abeam and glance at them now and then; if they walk, you are dragging.
- Watch your swing circle: everyone in an anchorage swings together only if everyone has similar scope. Do not anchor in the channel, ever.
- Retrieval: motor slowly up over the anchor taking in line, break it out with the bow's buoyancy, never the winch or your back alone. Snagged? Cleat it short and let the boat's own rise on a wave do the pulling.
Chapter 7. Local water, tides and weather
A national course will not tell you this part. The Grand Strand is sixty miles of mostly protected water, and the protection ends abruptly.
- The tide here swings four to six feet on a six hour and twelve minute beat. The creek you crossed at ten may not exist at four, and the sandbar you beached on gets bigger on the ebb and disappears on the flood. Anchor with the drop in mind.
- Ebb runs out, flood runs in, slack is the pause at the turn. Time skinny stretches for a rising tide and dockings for slack when you can; the current is a free set of brakes when you land into it.
- The Waterway is protected, but Murrells Inlet and Winyah Bay open to the sea. Wind against an outgoing tide stacks short, steep chop at the jetties. Rental operators almost always forbid the inlet run, and they are right to.
- Idle speed, no wake, within 50 feet of an anchored vessel, wharf, pier, dock or a person in the water, and in every posted zone. Level the boat fully; plowing through bow high at half throttle is the usual way to fail this.
- Beyond the law, your wake is legally your responsibility, at every speed, everywhere. What it damages, you pay for.
- Summer storms build inland on hot afternoons and arrive fast. Glance west every so often; the forecast you read at breakfast expired by two. Dark line building: jackets on, bimini down if it blows, and make protected water early.
Chapter 8. South Carolina law on the water
- South Carolina requires anyone born after July 1, 2007 to pass a NASBLA approved boater education course before operating a boat or personal watercraft of 10 horsepower or more, in force since August 18, 2023.
- You must carry your boater education card on the water. Exempt: born on or before that date, holding a Coast Guard credential, or visiting with an equivalent card from your own state.
- Motorized boats used on South Carolina water are titled and registered with SCDNR, the registration card rides on the boat, and the numbers are displayed on the bow. On a rental, that paperwork is the operator's job; knowing it exists is yours.
- SCDNR officers patrol these waters and can stop you to check equipment, registration and sobriety. The inspection is quick when the answer to everything is yes.
- If there is an accident, the law asks two things: stop and help, so far as you can without endangering your own boat, and report. Collisions involving injury, death or significant property damage are reported to SCDNR without delay. Leaving the scene on the water is the same crime it is on the road.
- Rental and club operators set their own age and experience rules, often stricter than the state. The stricter rule is the one that applies to you.
Chapter 9. Alcohol, carbon monoxide and heat
- BUI is the same 0.08 limit as driving, enforced on the water by SCDNR, with penalties that reach fines, jail and the boat privileges the day was about. Sun, wind, glare and engine motion roughly double what a drink does to you on land. The person at the helm stays sober. No version of this chapter has an exception to that sentence.
- Carbon monoxide is the invisible one: engine and generator exhaust pools under swim platforms, in cockpits at idle with a following breeze, and inside canvas enclosures. It is odorless and its early symptoms, headache, dizziness, nausea, get mistaken for seasickness. Nobody swims under or hangs off the swim platform while an engine or generator runs, and "teak surfing" behind the transom is banned for exactly this reason.
- Heat is the quiet third: a day of sun, wind and beer without water ends in headaches, short tempers and bad decisions at the helm. Shade, water, and food do more for boating safety than most gear aboard.
- Cold gets a word too: even here, spring and late fall water is cold enough that a sudden swim starts with an involuntary gasp. Jackets on when the water is cold, whatever the air says.
Chapter 10. When something goes wrong
Emergencies on the water are rarely one big mistake. They are three small ones in a row. Here is how to stop the chain.
- Person overboard: shout it, one person points and never loses sight of them, throw the Type IV. Approach slowly into the wind or current, and cut the engine completely before they come near the boat. A turning prop does not give second chances.
- Sudden cold water: the first danger is the gasp, not hypothermia. Get to flotation, get your breathing under control, then act.
- Capsized or swamped: stay with the boat. It floats, it is visible, and it is what rescuers find. Swimming for shore is how strong swimmers drown.
- Taking on water: find it before it finds the batteries: check the plug, hoses and fittings, get the bilge pump running and a bucket moving, slow to the speed that keeps the leak highest, and point at the nearest safe shallow. A boat sinking toward a sandbar is a boat saved.
- Fire: cut the engine and fuel, get everyone upwind, aim the extinguisher at the base of the flames in short sweeps. Fuel fires and water do not mix. If the first extinguisher does not end it, the next move is jackets and distance, not heroics.
- Aground: stop the engine, check for leaks, tilt the motor up and shift weight away from the grounded spot. Powering through at full throttle turns a sandbar tap into a lower unit invoice. On a falling tide, work fast or make peace with waiting.
- Calling for help: VHF channel 16 is the distress channel the Coast Guard monitors, and a mayday there reaches every boat in range at once, which is where the five minute rescue actually comes from. Near shore, 911 works too. Give your position, the number of people aboard, and the problem, in that order. Urgent but not grave, engine dead in the channel, is "pan-pan", not mayday.
- Render assistance: if you can help another boater in trouble without endangering your own crew, the law and the water's oldest custom both say you do.
Chapter 11. Jet skis and small craft
A personal watercraft is legally a boat with everything that implies, plus physics and rules of its own.
- South Carolina PWC rules: daylight operation only, sunrise to sunset; a life jacket worn by every rider regardless of age; the cutoff lanyard clipped to the operator; and the same education law as boats, which for 10 horsepower and up means all of them.
- Jet drives steer only under power. Chop the throttle mid-panic and the steering goes with it; you become a passenger sliding toward whatever scared you. Trained reflex: steer first, throttle second.
- Reboard from the stern, engine off, using the step or strap. After a fall, the lanyard has already killed the engine, which is the system working.
- Give fishermen, paddlers and anchored boats the same 50 foot idle courtesy as everyone else, and resist the wake jumping behind passing boats; it is the fastest way to meet their hull with yours, and it is negligent operation in an officer's notebook.
- Kayaks and paddleboards share every channel here. They are nearly invisible from a helm at speed and they cannot dodge. The lookout habit exists for them.
Chapter 12. Tow sports, wildlife, and leaving no trace
- Towing a tube or skier takes two jobs on the boat: one person drives, an observer watches the rope and the rider. Everyone being towed wears a life jacket, and towing runs daylight only, sunrise to sunset.
- Agree the hand signals before the rope goes taut: thumbs up for faster, down for slower, a slash across the neck for stop, a pat on the head for back to the boat, and an OK sign after every fall.
- Before the tube goes in, look behind you. You need clear water the whole width of your turn, and the wake you cut past a moored dock is still your responsibility. Kill the engine completely for pickups, same as any person in the water.
- Dolphins work Murrells Inlet and the Waterway daily. Enjoy them from distance, never chase, circle or feed. Same for the wading birds on the marsh edge at low tide.
- Nothing goes over the side. Trash comes home, fuel gets topped up slowly at the pump, and the marsh grass and oyster beds that make this coast worth boating stay unscraped by props and anchors.