The material below was copied/pasted from another boating I belong to. I wouldn't have the cojones to do what the miners did in this first video. Both videos are pretty short.
Ripple Rock lies between Campbell River BC and Quadra Island, in Seymour Narrows. Until its demise in 1958 it claimed over 100 lives and numerous ships.
Biggest purposeful non nuclear explosion to date ended its dominance in Seymour Narrows.
Short video of 3 year construction plan leading up to explosion.https://www.nfb.ca/film/ripple_rock/
Video of CBC television news clip of explosionhttps://www.cbc.ca/news/canada/briti...ates-1.4598172/www.nfb.ca/film/ripple_rock/