When doing a drift dive, you should start your dive:

Starting a drift dive with the current is the recommended approach for several reasons. By beginning the dive in the same direction as the current, divers can conserve energy and reduce the likelihood of fatigue. This allows them to use the current to their advantage as they explore the underwater environment. Furthermore, starting with the current helps ensure that divers are able to comfortably manage their ascent and exit from the water at the end of the dive, as they can drift back to the exit point rather than fighting against the current to return.

Another important aspect to consider is that by diving with the current initially, divers can also more easily navigate back to their entry point or follow a predetermined route, making it safer and more efficient overall. By the time they might need to return, they are already familiar with the surroundings, allowing for a more enjoyable dive experience.

Starting the dive with the current not only enhances diver safety and enjoyment but also ensures better gas management and overall dive planning, making it an essential tactic in drift diving.