Line arrows are triangular, plastic devices that are used to indicate the direction of the exit. They attach to the guideline and point to the exit. Typically, it is recommended that you carry at least three line arrows on every overhead environment dive. When cave diving, many of the caves have permanent lines and already have lines arrows. Sometimes, distances are marked on the arrows. Also line arrows are used to indicate a jump location. This is done with two line arrows in a row on the main line indicating where to tie off a jump line. When placing line arrows on a line, mark sure that you always orient them showing the direction out.
Cost: $1 to $2 each