One element of diving safety is having a day at the surface before you actually fly back home. So we saved the re-deployment of the Akumal Bay sensors to the end of our trip. Though it's probably not very exciting, finding a good way to clean loggers that have been in the ocean for long periods actually turns out to be important. If I could figure out how to keep the transmission windows clear of bio-growth (for months at a time), I would already have light level loggers on that reef.