I live in the MidAtlantic region in the United States, so many of the available dive areas are quite murky. What are some techniques for maintaining contact with your dive buddy in very low visibility conditions? Additionally, what are some recommended contingency plans if you lose visual contact with your buddy in unfamiliar waters?
Thanks,
Brendan
Rules for diving in murky water ...
1. Communicate well before the dive ... make sure you BOTH know what to expect from the dive plan and from each other.
2. Keep your buddy teams small ... no more than three, preferably two.
3. Descend facing each other ... watch each other all the way down. Descend together.
4. Swim side-by-side ... lead-follow doesn't work in murk because the front person can't watch the back person, and all it takes is one kick to provide enough separation to lose each other.
5. Slow down ... it's more difficult to lose each other when you're swimming slowly. Besides, you can't see very far anyway ... so go slow and pay attention to what you CAN see.
6. Use good dive lights ... lights are more visible than dive gear. Shine your light such that your dive buddy can see it ... if your buddy can see your light, they know you're there.
7. Slow down ... the faster you swim the easier it is to lose each other.
8. Communicate! If you see something interesting and want to stop or veer off to check it out, tell your buddy first ... THEN change speed or direction. Make sure they know what you're doing before you do it.
9. Swim slower ... that wasn't a rock you just swam past, it was an octopus. Things look way different when your vis is impaired, and it's way easier to pick out recognizable objects if you're swimming slowly.
10. When you're ready to come up, ascend facing each other ... watch each other all the way up. Ascend together.
What to do if you lose each other ...
1. Shine your light completely ... slowly ... in a circle, while looking for your buddy's light.
2. Shine it up above you just a bit, looking for your buddy's bubbles ... bubbles are more reflective than dive gear, and will sometimes reflect back even when you can't see them.
3. Kick back ... slowly ... in the direction you last saw your buddy. They might have just stopped to look at something a few seconds ago, thinking that you knew they were stopping.
4. If you don't find them within a minute or so, begin ascending. Regroup on the surface and discuss your options.
... Bob (Grateful Diver)