Ripple Rock, Underwater mountain at Seymour Narrows, British Columbia, Canada
Ripple Rock is a submerged mountain located in the Discovery Passage near Seymour Narrows in British Columbia. The formation consists of two underwater peaks, with the shallower point reaching close to the surface.
For decades, this formation posed a serious hazard to ships passing through the narrows, resulting in numerous wrecks and many lives lost. In 1958, a major demolition project successfully removed it from beneath the water.
The 1958 demolition of Ripple Rock marked a milestone in Canadian television as the first coast-to-coast broadcast of a live event across the nation.
This site is only accessible by water, and visitors typically view it during boat trips through Seymour Narrows. Clear weather and calm water conditions make viewing the location easier.
The controlled blast that destroyed it was one of the largest non-nuclear explosions ever recorded at the time. Workers dug a deep shaft and tunnel system beneath the water to position the explosives with precision.
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