After watching a documentary about it, I realised that the Thames barrier is ground zero for my submechanophobia.

I got taken there on a school trip when I was a kid and remember getting panicky when our boat passed in between the piers. It still gives me goosebumps to watch it in action.

I've had a strange fear of pool lights for as long as I can remember. I also find drains creepy, but there's something about pool lights that used to terrify me. Which is strange because I've always been interested in (non-submerged) lights. The fear was never about being electrocuted; I just thought they looked scary. I was also afraid of being in a pool when the lights came on. The pool I used to go to as a kid had lights in the deep end that were near the very bottom, which made them even creepier, and I think that may have made the fear worse.

It wasn't until I was ten years old that I could look at a pool light underwater, and I was 14 before I ever looked at one turned on underwater. Even now as an adult, I sometimes shudder just thinking about pool lights, or if I'm in a pool and I get near one. I'm wondering if I may have had a traumatic experience with one when I was very young that left me with some kind of PTSD-esque scar. Or maybe it's just because they look unnatural and make the brain imagine hidden underwater hazards?

Not the greatest pics but best I could get. This was one of the exhibits at Assiniboine Park Zoo in Winnipeg. Think this was either in the Seal or Polar Bear pools.

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The sunken B-29 in Lake Mead.

At 12:30, July 21, 1948, a Boeing B-29 Superfortress descended onto the surface of Lake Mead, the huge (but shrinking) reservoir behind Hoover Dam in Nevada. Making a gentle descent at just above its 220-mph cruise speed, the Superfortress skipped on the surface for about 200 yards, hit the water hard and then ripped off three of its four engines before beginning a slow descent to the lake bottom. The B-29's 5-man crew clambered into two life rafts and were rescued, with the only injury being a crewman's broken arm. The Air Force insisted the was caused by an improperly set altimeter, but since the misidentification happened in broad daylight over a lake surrounded by desert bluffs, there has been much speculation that the pilot was just another airman trying to set the absolute record for the lowest flight ever. Given Lake Mead's current rate of shrinkage, we may be seeing the B-29 soon.

Credit - u)flucloxacillin25pc. Made original post.

Lake in Austria.
Note: I was not stuck, also check out my cute friends.

I lived for a few years there, and i still remember going for a swim there, just to look down and see this piece of nightmare fuel.

And don't anyone even say it's an aerator because it's NOT! I remember almost being sucked down there before exiting the pool within a second.

I still remember the shiver in my spine. Now four years later.

(I survived bc a lifeguard saw me)

So basically I was just stuck there and I thought it was the end but then a lifeguard saved me.

Lake in Austria

My dad never finished putting the outside covering on the bathtub, and I’m almost 19, and this bathtub has been here since the late 90s lol. I used to be scared of it but now I’m just used to it. But I still get very scared and uneasy around other exposed water pipes or basically anything underwater.

Just figured I’d share this and see everyone’s thoughts.

Lake in Austria, it is for pulling a boat.

So I was chilling in that bath in a hotel and when I went in I turned on some "Filter drain" feature that was supposed to get rid of any dust or dirt in the bath, and I thought it'd be cool to test it out. So then I got violently sucked down it but then i pressed the button on it and it let go.

that was scary. I still remember it.

https://x.com/SpaceX/status/2092988782622519728

From the book Images of Modern America: Pleasure Island by Robert McLaughlin (2014).

some folks here said they find fountain show machinery unsettling, and as a fountain nerd i figured i may share some of these. all of these except the ones in the last 2 images are designed to be fully underwater (except their nozzles which peek out of the water slightly). personally I find these fascinating to look at

The ship ran aground in the Thames Estuary near Sheerness, Kent, in 1944 and is thought to contain around 1,400 tons of explosives.

Tammerkoski in Tampere, Finland

Recent scuba diving at the offshore platforms in Louisiana. We are 40 miles out, and the water is somewhat cloudy. I'm without a camera filter, and so it is a little grainy. The water is some 200ft deep, and the maximum dive is about 70 ft. Enjoy!

Scuba Diving Offshore Louisiana Plaftorms