The 1000 Island Region is the the gateway of exploration and commerce from the Atlantic to Lake Superior for the St. Lawrence Seaway System. At 2400 miles long the St. Lawrence Seaway System is is the longest inland waterway in the world. Over the last 400 years the mighty St. Lawrence River has claimed hundreds of schooners, barges, paddlewheelers and freight carriers. Earth, wind, fire, snow and ice have all claimed their fair share of these wooden and steel vessels.
Itís been said that the St. Lawrence now has some of the best freshwater wreck diving in the world. A recent invasion of zebra mussels and quagga mussels, carried in the bilge water of a freighters from the Baltic Sea and around the world, has been filtering the water to historic levels of clarity. Light now penetrates easily all the way down to sport diving limits and beyond on most days. Lights are still very handy to peer into and around the wrecks as well as for the many photographic opportunities. The majority of pictures on this website have been taken without a flash or strobe, using only the ambient light.
During the summer months, the water temperature is typically in the mid to upper 70ís all the way down to 100 feet and beyond in places. The St. Lawrence River skims the warm water from the surface of Lake Ontario and creates a warm water diving environment that has no thermocline to speak of.
The St. Lawrence offers snorkeling and diving for all skill levels, so it is easy to have an interesting and enjoyable dive while staying within your certification, comfort and skill level. There is plenty to see and explore for all. You can enjoy the beauty and history of the St. Lawrence without getting wet. If youíre not certified to scuba dive, there are a number of wrecks available for snorkelers and swimmers to explore. Are you a newly certified diver? Shore diver? Boat diver? Intermediate, advanced, technical, wreck diver Air, Nitrox or Trimix? The St. Lawrence has the adventures and support structure to make your visit a pleasant one.
When is the best time to dive the St. Lawrence? Most diving is done during the summer months. However the diving is truly excellent during off peak months of May, June, September, October and November, meaning less boat traffic, clearer water, and a majestic level of peace and tranquility. Beyond mid November until spring, a dry suit and the appropriate ice diving equipment is strongly suggested. Keep in mind that the majority of the St. Lawrence can freeze over solid in the winter. The good news is that you only have to share it with ice fishermen.
Full service dive shops such as Huntís Dive Shop in Alexandria Bay and Mikeís Aquatic Center in Watertown, will provide you everything you need including mixed gas within feet of the river.