checking is always a good thing. >> our program includes field schools and full-on missions. in order to document, we have to teach disciplines how that is done. the first day of training is in a classroom learning how to document chip bricks underwater. learning mapping which is the type of documenting that we're doing, teaching people how to parse the wreck and then how to document items of interest so that we can identify it. then we take the participants to the next stage which would be outside and we set up a mock wreck to give them situational awareness of what it is they're going to be doing once they hit the water. then we take them out to the wreck site .