Lake Michigan shipwreck SCUBA diving, 9/30/2018 #4

Night diving on the wrecks "Holly Barge" and "Illinois Dredge". Visibilty was poor on both wrecks. These wrecks are very close to each other, one reachable to the other with a guide line. Air temperature was about 65 degrees, rainy weather, waves 3-5 feet, Water temperature was in the mid to upper 60's at both wrecks. Maximum depth 35 feet, . I'm wearing my Viking Protech drysuit, Aqua Lung Military Brotula BCD, Hollis AUG100 undersuit, Hollis F1 fins, OTS Stealth full face mask, and Oceanic ProPlus 3 computer. Video with Sealife DC2000 camera, running 1.08 firmware. Diving happened during the "sunset 1/2 hour", this counts as a night dive. While returning from the Illinois Dredge on the line, the surrounding water got noticeably darker due to sunset and also thickening cloud layer from the west