Card Sound Golf Club

Signature Setup

I played Card Sound as an Ocean Reef guest one October morning, 74°F at 8 a.m. with the sound dead flat — and an hour later the wind had completely changed the course. This is a private layout at the northern tip of Key Largo, designed by Robert von Hagge and Bruce Devlin in 1974 and reworked by Brian Silva in 1999. It plays to a par of 71 over 6,578 yards from the back tees, with a slope of 140 and a rating of 72.6 — numbers that tell you the trouble here is positional, not length. The course takes its name from Card Sound itself, the shallow body of water separating Key Largo from the mainland, and that water sits in your sightline on more holes than the yardage book lets on.

Hole-by-Hole Wind & Playing Lines

The three holes that decide your card are all wind-dependent, and the wind in the Upper Keys is seasonal and predictable.

• The #1-handicap par-4: In winter, post-frontal NNE wind (Nov–Feb, roughly 12–18 mph on a typical morning) blows straight into this approach. A stock 150-yard shot plays closer to 170. Take one extra club, favor the short-right bailout, and never go long — long is dead.
• The par-3 over the sound: On ESE summer trade winds (May–Sep), the ball rides; on a NNE winter morning the same tee shot needs two more clubs and a lower flight. I watched a playing partner fly the green by 15 yards in October simply because he clubbed for the calm he saw on the first tee.
• A back-nine par-5 along the water: Crosswind off the sound pushes everything toward the hazard on the right. Aim down the left tree line and let the wind work — fighting it is how you reload.

Green & Fairway Characteristics

The greens are Bermuda and run firm in the dry season; in my October round they were quick and grainy, releasing toward the water on the holes that sit lowest. Silva's 1999 renovation kept the von Hagge-Devlin bunkering tight to the putting surfaces, so short-siding yourself leaves a genuinely hard up-and-down. Fairways are firm tropical Bermuda that give you roll in winter and almost none after a summer storm cell passes through. The front nine sets up slightly more open; the back nine tightens as the water comes more into play. With a 140 slope, the penalty for missing on the wrong side compounds fast — plot to the fat side of every green.

Seasonal Weather Pattern

The Upper Keys split cleanly into two seasons. The dry season (Nov–Apr) brings 75–82°F afternoons, lower humidity, and those NNE-to-N winds behind cold fronts that stall over the Florida Straits. The wet season (May–Oct) runs 85–90°F with high dewpoints, prevailing ESE trade winds, and near-daily afternoon convection — pop-up thunderstorms that build around 2–3 p.m. June through September overlaps Atlantic hurricane season, so multi-day wind events are a real planning factor, not a footnote. I haven't played Card Sound in peak July, so I rely on NOAA Key Largo historicals for the summer numbers rather than my own scorecard.

Local Play Tips

Mornings are the entire game here. The sea breeze fills in around 10–11 a.m. as the land heats faster than the sound, and once it does, every water-carry hole gets a full club harder. Book the earliest tee time Ocean Reef will give a guest, and putt the low greens before the wind starts pushing the grain — late-morning the same eight-footer that broke an inch breaks three. If a winter front is forecast, play the day *before* it arrives: the pre-frontal southerly is softer than the raw NNE that follows.

Pre-Round Weather Workflow

Use the 7-day G-Score on golfweatherscore as your tee-time selector, not just a forecast glance. For Card Sound, pull the windExposure reading the night before: if the morning shows NNE above 12 mph, club up on the #1-handicap par-4 and the sound par-3 and accept it. If the G-Score peaks early and drops after 10 a.m., that's your sea-breeze signal — get out at first light. Check the afternoon convection risk May–Oct and finish before 1 p.m. A round timed to the calm window plays 8–12 G-Score points better than the same course after the breeze fills.