Scott Riemer:
Got up real early this morning and made my way to Shaw's Cove in Laguna Beach to meet my instructor for our O/W dives. He told us to be there by 6:00, so I was there at 5:30. Eager would be a good way to describe it. Met my buddy and we waited. We're talking and I look in the rear view mirror. The instuctor is here, let's go! We walk over only to hear, "we're not going." Too much surge. So, we gotta wait until next weekend. I'm bummed because I've been looking forward to it. There were people diving but I understand he wouldn't subject us students to any hazard.
I'll get over it, but try to cheer me up anyway.
One of the things you also need to learn during the basic open water course is how to make the go-or-no-go decision. That is part of the site survey.
Here is how NAUI teaches it:
SEABAG =
Survey of the site
Emergency procedures
Activity planning
Buoyancy planning
Air planning
Gear planning
Different instructors have different variations of the Survey portion. I use the following visual:
The water
The waves
The wind
The sky
The horizon
The beach
The sand
The rocks
The kelp
The current
If the water is not too clear, it is not worth diving.
If the waves are pronounced, it is not worth diving. Surge is in part the underwater manifestation of the waves. The waves are normally (but not always) your clue about the surge. Pronounced underwater surge obscures visibility and makes the diving miserable by kicking you back and forth underwater.
If the wind is already up, even though it is early in the day, then the waves are only going to get worse, and it is not worth diving.
If the sky is all cloudy and stormy, then the wind is going to pick up, as are also the waves, and it is not worth diving.
If the horizon is dark and gloomy, well, you catch my drift ... .
If conditions are not right, you must call-off the dive, and go somewhere else, or wait until another day to dive. Not every day is a good day nor a safe day to go diving.