Rick Kruzel is a scuba instructor with over 20 years experience training
divers interested in diving Great Lakes shipwrecks.   He offers courses
ranging from Wreck Diver and Deco/Nitrox all the way to Advanced
Trimix Diver.   Class size is small and schedules are flexible so he can
tailor your course to meet your needs.   Training dives are conducted at
many of the premier dive destinations around the Great Lakes including
Whitefish Point, Straits of Mackinac, Lake Huron (Rogers City, Presque
Isle, Harbor Beach), Lake Erie (Barcelona, NY) and the Thousand
Islands region of the St. Lawrence River.
We have a full line breathing gas facility. We can pump anything
from oxygen compatible air to nitrox and trimix.  We have rental
doubles and regulators and other gear for students wanting to take
a "Intro to Tech" class and have not yet made gear choices.  

HERE to visit his website for more details.
Dunderberg, that you can dive with the proper training and gear!