Ice Diving rules for Banff

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We put the block back in and mark it! We just take it out so the lines don't catch it or on emergency exit the diver could crash into it and hurt themselves. It's also almost impossible to safely push 30+ inches of ice down and it is Canada so I think 30 is fair.

Ice math just for fun. Water is 62.416 lb/ft[sup]3[/sup] and Ice density is .9167. Floating force should be equal to the volume of water displaced - the weight of ice so... a 6 foot equilateral triangle (30 inches deep) is 45 ft[sup]3[/sup] and weighs 2574lb on land but with a 45 cubic foot displacement it needs to move 2808 in water. The buoyancy should be the difference between it's displacement - weight or 2808 - 2574 = 234 pounds.  I don't think my skinny 145 lb frame is going to push that kind of ice anyplace.