Deep diving requires a significant amount of equipment and careful planning, so reliable boat support is important.

When diving on wrecks or rocky sites, the exact position should be confirmed using navigation and depth-finding equipment (such as an echo sounder), and the boat should be positioned directly above the dive site when appropriate.

Larger boats equipped with boarding platforms, GPS, radar, radio communication equipment, and depth-finding instruments are generally more suitable than small boats such as inflatable boats.