Hole 1
Par 4 · 407 yd
Plays south-east. 1 bunker and water.
Green 25 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Hilton Head Island, South Carolina, USA
18 holes, par 71, about 7,056 yards (6,452 metres) along the hole lines. The par 3s are 4, 7, 14 and 17. The par 5s are 2, 5 and 15. The longest hole is the 15th at 581 yd, the shortest the 14th at 187 yd. The map shows 75 bunkers. Water is in play on holes 1, 2, 3, 4, 5, 7, 8, 10, 11, 12, 14, 15, 16, 17 and 18.
Every hole, numbered, as the app draws it.
Each hole turned so it plays up the page, from the tee at the bottom. Every green's slopes are mapped: flip a card to see its green.
Par 4 · 407 yd
Plays south-east. 1 bunker and water.
Green 25 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 501 yd
Plays south-east. 4 bunkers and water.
Green 27 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 437 yd
Plays south-west. 8 bunkers and water.
Green 30 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 191 yd
Plays south. 2 bunkers and water.
Green 27 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 546 yd
Plays north-east. Dogleg left. 12 bunkers and water.
Green 27 yd deep, 16 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 416 yd
Plays north-west. Dogleg right. 7 bunkers.
Green 33 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 196 yd
Plays south-west. 1 bunker and water.
Green 35 yd deep, 19 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 472 yd
Plays north. Dogleg left. 2 bunkers and water.
Green 30 yd deep, 16 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 326 yd
Plays north-west. 4 bunkers.
Green 25 yd deep, 33 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 449 yd
Plays south. Dogleg left. 3 bunkers and water.
Green 38 yd deep, 16 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 434 yd
Plays south. 5 bunkers and water.
Green 31 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 429 yd
Plays south-west. Dogleg right. 3 bunkers and water.
Green 40 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 372 yd
Plays south-west. 5 bunkers.
Green 27 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 187 yd
Plays north-east. 2 bunkers and water.
Green 32 yd deep, 19 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 581 yd
Plays north-east. Dogleg left. 6 bunkers and water.
Green 26 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 427 yd
Plays north-west. Dogleg left. 5 bunkers and water.
Green 28 yd deep, 20 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 214 yd
Plays south-west. 9 bunkers and water.
Green 36 yd deep, 20 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 470 yd
Plays north. 2 bunkers and water.
Green 27 yd deep, 19 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Lengths are measured along each hole's line on OpenStreetMap, so they can differ from the club's card. A bunker between two holes counts on both.
The app
On your iPhone and Apple Watch, Number & Line turns this map into a yardage book, with distances to the front, middle and back of each green from where you stand. You can plan each hole at home and get club advice from your own distances and the day's wind.
The app is coming soon to the App Store, and this course is already built for it.

Course map © OpenStreetMap contributors, under the Open Database Licence. See it on OpenStreetMap, where anyone can correct it. Green slopes: USGS 3D Elevation Program 1 m DEM (public domain). Our maps are open data too. Number & Line isn't connected with the club.