Below the Surface
Ontario Underwater Council's Online Newsletter Below the Surface ~ Issues: . MAY 2026 DAN online seminar on cold water diving; Immersion Pulmonary Edema seminar APRIL 2026 No solo diving in the pool; Avoid set-lines at Port Huron; OUC's 70th anniversary. FEBRUARY 14, 2026 Purchase a PFD lifejacket and receive [...]













