Jumping into water -- How high?

I think the highest I've ever done (into "safe" water) was a quarry in Kentucky Lake.  It seemed higher than a 10m diving platform.  I did that one when I was about 14.    I did the 10m platform when I was 11.

The highest I've ever done into *unknown*  water was about 20 feet from the suspension bridge at Turkey Run state park.   Thankfully, the bottom of the creek was sandy, because I hit it HARD.

I don't know what the *limit* would be for fun.   I've never had the opportunity to jump off of anything taller than about 50 feet. (into water)   The tallest rappelling jump I've ever done was over 60m.   We know it was that tall because we had a 60m rope, and the rope didn't touch the ground.   Thankfully, it was a climbing rope, so it stretched.   There was much discussion about whether the rope would stretch enough to reach the ground... it was hard to judge the distance while standing at the top.   (it did) 

186' is way too high for me.  

I've jumped off county bridges into rivers, and both jumped and dove off a cliff a long time ago.  Those were in the 10 meter range, maybe a little higher.  

Funny story on the cliff.  "Tradition" is that guests have to dive off this cliff during their visit.  My hosts were telling me of a guest who didn't want to climb up barefooted, so he wore rubber boots to the top.  When he dove in, the top of the boots hit the water and stayed right there, yanking him rather violently out of his boots.  

I jumped off some bridges years ago but those days are gone.  Nothing even close to 186!

 I'd jump off a cliff again in a heartbeat under the right conditions.  Say like Rick's Cafe in Jamaica.  That's around 25-30'.

There is a pretty decent rock we like to jump off on one of my river rafting spots, probably 30 feet or so, water is nice and deep so it is a lot of fun.

The is the local bridge people like to jump off. Know a guy that climbed to the top of the trusses and jumped from there, he won't be doing that again, managed to hit himself in the head with his own arm and knocked himself out. 

What a great pic!

The highest I've ever dove was on the Snake River, probably about 30-40 feet. I love that feeling of flying towards the water.

Random cliffs at Lake Powell.  I would like to say they were near 50' but things get distorted at that height.  However, there is a picture of me perched at the top and I'm 6'7" and using me as a scale, it looked like there were 6-7 of me that could be stacked up...

The wife and I cruise a lot and I'm always looking off the ship and asking "I wonder if I would survive that".  The lower decks, of course, but that top deck?  That's up there.

The Sunshine Skyway bridge over Tampa Bay is about 190' in the center.  It's been popular with suicide jumpers since it opened in 1990.  Hitting water from that height is pretty much like hitting concrete. 

Some poor soul jumped a few years ago and landed on the foredeck of a pleasure boat passing under the bridge - would hate to have to clean that up.

Mark