Hawaii is an island doomed to be sunk at the slightest raise in water level. Alaska it is.
bryan.derksen
Mauna Kea's elevation is 4,200 meters, I don't think Hawaii is in danger of slipping beneath the waves any time soon. :)
bryan.derksen
While no doubt a horrifying experience, I think I can ditch a backpack quickly enough that it won't have dragged me too deep to get back to the surface. Especially if I've got some forewarning that this is about to happen, which the "be thrown" part kind of hints that I do.