Lake Ontario crossings are renowned for being demanding open water swims in one of the most well-known Great Lakes. Ranging from 24 to 51 kilometers, these crossings can take swimmers over a day to complete.

What makes Lake Ontario crossings unique is the combination of long distances, endurance requirements, and the unpredictable nature of the conditions.

If you're seeking a challenge that pushes your limits and rewards you with an incredible sense of accomplishment, participating in a Lake Ontario crossing could be the perfect opportunity for you.

A Lake Ontario swim crossing is one of the premier open water swimming challenges in the world. The South to North route typically begins at Niagara-on-the-Lake. This is a grueling swim for any swimmer and swimmers need to be physically and mentally fit for this feat of endurance that can take anywhere from 14 to 24 hours or even more to complete. Lake Ontario’s unique challenges are water temperatures, strong and unexpected currents and waves if conditions are not perfect.

All Lake Ontario Swims must be SOLO Swims sanctioned and crossing convoys must adhere to requirements. One of these is one main boat and two zodiacs with crew.

Routes

Designated mapped-out routes for swim crossing.