Lake Michigan
We decided to take advantage of the extended Labor Day weekend to do some dives in Lake Michigan. We booked two spots on a dive charter through Aquatic Adventures, a local dive shop in Brookfield. This would allow us to do two dives on Saturday and two dives on Sunday. We left Madison late Friday afternoon and drove straight to the dive shop, which took about an hour and 15 minutes, to pick up my tanks. I needed four total tanks for both days of diving, and we opted for both steel and Nitrox. This cost us about $40 per tank, whereas an aluminum tank with an air-fill would have cost about $10 per tank. We opted to pay the additional cost for Nitrox to optimize my bottom time. Since Eric would be diving his rebreather, it would most likely be my NDL (No-Decompression Limit) that would limit our dive time. This is the amount of time I could stay at depth before my computer indicated I should ascend to avoid decompression illness. In retrospect, we didn't think it was worth the extra ...