Got a severe fear of heights. I dived from a 3 m (10 ft) springboard once. Absolutely terrifying! I felt like I was in the air for minutes! And the water hurt like hell when I landed. I am certain that I would die if I jumped from 10 m (30 ft) and I would shatter into fleshy fragments falling from 20 m...,(reply>), @Lone Starr LMAO!  Dont give 'em any ideas!,(reply>), If you had severe fear of heights, you wouldn't have jumped from 3 m.,(reply>), We had a wharf on the island in Maine we grew up on that everyone had to go off the top perch to prove their manhood at some point. Some were smart and did it at around high tide (15 to 20 feet). Others (me) did it at around low tide (35 to 40 feet+). Never do that again. You jump out, pause and then start to fall and just keep picking up speed until you felt the cold slap of Maine ocean water, hard. Then you go down. Down to water layers where it gets colder and colder. Now you were freezing, out of air because it was slapped out of you when you hit the surface and you are a long way from that surface where the air is. As I said I will never do that again.,(reply>), I used to love jumping from 5 m when I was 10. Very few from my swimming class dared it, at that age it felt more like 20 m 🤣,(reply>), Good on you for conquering you for beating your fear, even if it was only once, meanwhile i have been jumping from 2+ meters (highest I've ever gone was 12 to 15 meters, but i haven't encountered any higher cliffs where you're not guaranteed to hit the wall or bottom if you jump) since before i knew how to swim (i would just surface and climb onto dad's back) so from when i was 3 or 4.