Kristen here:

Today, the team went out to do a second muck dive since the first was an unsuccessful Waldo search. Which we found out is “where’s Charlie” in french. Aaron joined them on the dive today and I stayed behind in order to assist with some structure building for some of the artificial reefs they are going to be putting down. Plus today gives me some on land time to drink as much water as humanly possible and  hydrate before getting back in the water. I hate not diving, but I’d rather miss one day than the whole week because I got sick.  So artificial reefs….

The structures that are being built here range in size and shape. Most of the time, whatever idea you have will work as long as it’s not overly complicated. The structures must be large and sturdy in order to support the coral growth and not collapse under the weight of the organisms.  Plus they try to include a couple of holes for the fish to hide in, creating a fish hotel of sorts.