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Line Arrows and Cookie Markers

Cave divers use a distinct set of markers to determine the direction and distance travelled in a cave. These markers must be identifiable through sight and touch should the divers find themselves in limited or zero visibility. Many wreck divers have also adopted using these directional and non-directional markers.

Directional markers are known as "line arrows" in the cave diving community. Many popular cave and wreck diving systems have permanent line arrows at regular intervals (for example, every 30 metres or 100 feet) pointing to the nearest exit. If there is a numerical value displayed on the line arrow, it is most likely identifying the distance to the nearest exit.

Non-directional markers are known as "cookies" in the cave diving community. Cookies are used to mark reference points for divers during circuits and traverses, distinguishing lines at a 'T' intersection, or placed by each member of a team on a jump or gap line to identify who has exited should the team get separated. Non-directional markers should have some form of personal identification printed on them such as initials, or drawings. Some cave divers add a personal tactile element to help identify their marker should they encounter zero visibility; these tactile identifiers may include slits on the side or holes punched through the marker. A non-directional marker is only to be referenced by the diver or team who installed it and should be ignored by others.

Referencing Exit Markers (REM) are a relatively new marker designed to be used as an arrow by the diver placing it and a cookie by others. It's a hybrid marker. A REM is rectangular in shape with slots included enabling divers to attach it to a line. It also has blank space available to include personal or team identification on one side and a small slate on the other to write on for reasons such as survey work, team separation (i.e. I exited the cave at 37 minutes), and more.

You can trust the range of top-quality line markers and cookies from The Scuba Doctor.



Product Image Item Name- Price
Dolphin Tech Cave/Wreck Line Arrow Markers Large White (5 Pack)

Dolphin Tech Cave/Wreck Line Arrow Markers Large White (5 Pack)

The Dolphin Tech Large Line Arrow Marker is white in colour, 84 mm long and 50 mm wide. They come in a pack of 5 line arrows. These line arrows are...
$15.00  $11.00
Save: $4.00 (27%)


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Dolphin Tech Cave/Wreck Line Arrows Small Fluoro (5 Pack)

Dolphin Tech Cave/Wreck Line Arrows Small Fluoro (5 Pack)

The Dolphin Tech Small Line Arrow Marker is fluorescent in colour, 65 mm long and 40 mm wide. They come in a pack of 5 line arrows. These line arrows...
$11.00  $9.00
Save: $2.00 (18%)


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Dolphin Tech Cave/Wreck Round Line Cookie Markers (5 Pack)

Dolphin Tech Cave/Wreck Round Line Cookie Markers (5 Pack)

The Dolphin Tech Round Line Cookie Marker is white in colour and 5.5 cm (2 inches) in diameter. They come in a pack of 5 markers. Cookie line markers...
$15.00  $11.00
Save: $4.00 (27%)


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Mares XR Cave Line Arrows (5 Pack)

Mares XR Cave Line Arrows (5 Pack)

The Mares XR Cave Line Arrows are a must when diving in cave, wreck or over head environments. They are placed on a guide line to prevent any...
$15.95  $14.50
Save: $1.45 (9%)


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Mares XR Cave Line Cookies (5 Pack)

Mares XR Cave Line Cookies (5 Pack)

The Mares XR Cave Line Cookies are a must when diving in cave, wreck or over head environments. They are a classic non-directional line marker to...
$15.95  $14.50
Save: $1.45 (9%)


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Mares XR Cave Line Markers (5 Pack)

Mares XR Cave Line Markers (5 Pack)

The Mares XR Cave Line Markers are a must when diving in cave, wreck or over head environments. They are a non-directional Reference Exit Marker,...
$15.95  $14.50
Save: $1.45 (9%)


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OMS Line Arrow

OMS Line Arrow

OMS Directional Line Arrows are orange in colour for high visibility to mark the direction of the closest exit. Direction arrows were first used by...
$2.00  $1.50
Save: $0.50 (25%)


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Monthly Specials For May

Mares XR Cave Line Markers (5 Pack)

Mares XR Cave Line Markers (5 Pack)
$15.95  $14.50
Save: $1.45 (9%)

Mares XR Cave Line Cookies (5 Pack)

Mares XR Cave Line Cookies (5 Pack)
$15.95  $14.50
Save: $1.45 (9%)
Mares XR Cave Line Arrows (5 Pack)

Mares XR Cave Line Arrows (5 Pack)
$15.95  $14.50
Save: $1.45 (9%)