please empty your brain below
What's the lowest you've ever been below sea level?

(if it’s not the Dead Sea, it's probably a tunnel)

diamond geezer | Homepage | 28.01.21 - 12:00 a.m. | #

Channel Tunnel (115m)

diamond geezer | Homepage | 28.01.21 - 12:01 a.m. | #

Dead Sea, 430.5m below sea level. I’m hoping a submariner can beat this.

ROBERT Butlin | 28.01.21 - 7:18 a.m. | #

Channel tunnel again.

Putters | 28.01.21 - 7:28 a.m. | #

Dead Sea also.

Martin | 28.01.21 - 7:42 a.m. | #

I will have to concede a ditto here ... Channel Tunnel. oh, but wait! I have indeed floated on the Dead Sea, cheers Robert Butlin!

PJS | 28.01.21 - 7:43 a.m. | #

Channel Tunnel as well - expect that will be a popular answer.

Greg | 28.01.21 - 7:52 a.m. | #

c.180m in the Wieliczka Salt Mine (it's 327m at the deepest point, but the surface is 137m above sea level)

Steve | 28.01.21 - 7:52 a.m. | #

The Hvalfjorddur tunnel in Iceland, which according to Wikipedia reaches a depth of 165m below sea level.

Baldassaro | 28.01.21 - 7:53 a.m. | #

Dead Sea too.

Toni | 28.01.21 - 7:57 a.m. | #

Have done Channel Tunnel, so that is deeper: but also Death Valley -86m

Liz | 28.01.21 - 7:59 a.m. | #

Channel tunnel.

Alan | 28.01.21 - 7:59 a.m. | #

Another Channel Tunnel here.

Amanda | 28.01.21 - 8:00 a.m. | #

-165m - Hvalfjörður Tunnel in Iceland

Jochem | 28.01.21 - 8:00 a.m. | #

I think the Freifjord Tunnel at Kristiansund in Norway. 130m.

Jim | 28.01.21 - 8:05 a.m. | #

The crazy Death Valley golf course. I think they said -200ft so about 60m.

Kevin | 28.01.21 - 8:14 a.m. | #

Channel Tunnel for me too.

Alan S | 28.01.21 - 8:18 a.m. | #

Dead Sea

Sara | 28.01.21 - 8:24 a.m. | #

wow, dead sea (41 years ago!), but I had no idea it was so far below sea level.

peter | 28.01.21 - 8:34 a.m. | #

Same answer. Burnley Tunnel at 65 metres

Andrew | Homepage | 28.01.21 - 8:39 a.m. | #

Also Channel Tunnel, thanks DG for reminding me.

Jimbo | 28.01.21 - 8:41 a.m. | #

Yep, Channel tunnel for me.

Mark | 28.01.21 - 8:46 a.m. | #

1.1km below in the Boulby Mine Underground Laboratory.

Huw | 28.01.21 - 8:57 a.m. | #

A school trip to Tilmanstone Colliery in Kent, which extended out under the sea. It's proving remarkably difficult to find the actual depth quickly, but seems to be around 900m below the surface, which was about 60m above sea level.

Man of Kent | 28.01.21 - 9:06 a.m. | #

Channel Tunnel for me

James | 28.01.21 - 9:24 a.m. | #

I've also been down Wieliczka, but most of the tourist routes only go down 110m or so, which means not very far below sea level at all. So Channel Tunnel probably does it.

James | 28.01.21 - 9:25 a.m. | #

Channel Tunnel

Wole | 28.01.21 - 9:27 a.m. | #

Another Dead Sea.

RogerB | 28.01.21 - 9:30 a.m. | #

Channel Tunnel

Chz | 28.01.21 - 9:33 a.m. | #

Ryflyke tunnel 292m and Byfjord tunnel 223m.

Robin | 28.01.21 - 9:34 a.m. | #

Channel Tunnel

Bernard | 28.01.21 - 9:40 a.m. | #

Dead Sea

David | 28.01.21 - 9:41 a.m. | #

Dead Sea.

Malcolm of Kent | 28.01.21 - 9:43 a.m. | #

Channel Tunnel again.

Alex | 28.01.21 - 9:54 a.m. | #

Dead Sea

commonliner | 28.01.21 - 10:24 a.m. | #

Seikan Tunnel (240m) on a Shinkansen train from Tokyo to Shin-Hakodate.

Pinnerite | 28.01.21 - 10:25 a.m. | #

Turfan Depression. 154m below sea level.

the other eric | 28.01.21 - 10:44 a.m. | #

Dead Sea

Cornish Cockney | 28.01.21 - 10:56 a.m. | #

Channel Tunnel, though Badwater basin in Death Valley is an impressive -85m

Mikey C | 28.01.21 - 11:22 a.m. | #

Channel Tunnel (115m)

JonathanC | 28.01.21 - 11:45 a.m. | #

Not really thought about it, but I believe bits of Silvertown are below sea level, so probably somewhere there.

dg writes: They’re not.

MO | 28.01.21 - 11:46 a.m. | #

Channel Tunnel for me as well at 115m.

I was going to say Berchtesgaden's salt mines in Germany as an article in The Independent claims they're 130m below sea level but I'm not sure I believe that. I think they must mean below ground

Anders | 28.01.21 - 12:26 p.m. | #

Level 19, Geevor Tin Mine, about 480m below sea level (580m below ground). That part of the mine was actually under the sea.

Estepnist | 28.01.21 - 12:42 p.m. | #

Channel Tunnel

miker | 28.01.21 - 2:00 p.m. | #

Channel Tunnel.

Andrew Bowden | Homepage | 28.01.21 - 2:15 p.m. | #

Channel Tunnel.

Nico Hogg | 28.01.21 - 2:19 p.m. | #

I've swum in the Dead Sea. And I spent 3 years of my life working on the Channel Tunnel construction, though my bits were at the terminals.

Peter | 28.01.21 - 2:39 p.m. | #

The Transbay Tube, San Francisco Bay. -(41M)

jmc | 28.01.21 - 2:52 p.m. | #

Channel Tunnel as well

Caroline | 28.01.21 - 3:17 p.m. | #

Obvious channel tunnel :p

Thorum | 28.01.21 - 3:41 p.m. | #

430m - Dead Sea

PeterB | 28.01.21 - 4:25 p.m. | #

Channel Tunnel

ChrisW | 28.01.21 - 4:56 p.m. | #

Another one for the Channel Tunnel

martin in canada | 28.01.21 - 4:57 p.m. | #

Channel tunnel again! Much more intriguingly but sadly less deep, 60m in the VLJ medium-level nuclear waste repository in Olkiluoto, Finland.

David C | Homepage | 28.01.21 - 5:10 p.m. | #

Byfjord Tunnel, Stavanger. 223m below sea level.

Pete_LL | 28.01.21 - 7:06 p.m. | #

I think I may have visited the Dead Sea when I was a baby, but Wieliczka is the lowest place I can remember having visited. It's the only visitor attraction I've been to where they've specifically asked that we didn't lick the walls.

martin | 28.01.21 - 8:53 p.m. | #

Channel Tunnel again.

Sprout Eater | 28.01.21 - 8:59 p.m. | #

Channel Tunnel

Bob L-S | 28.01.21 - 10:08 p.m. | #

Hvalfjordur Tunnel, Iceland. -165m.

Moritz | 28.01.21 - 10:44 p.m. | #

Another for the Dead Sea.

Jordan D | 29.01.21 - 12:32 a.m. | #

115m - Channel Tunnel

Ken | 29.01.21 - 11:55 a.m. | #

Bit boring, the Channel Tunnel.

Neil | 29.01.21 - 1:05 p.m. | #

Lac Assal, Djibouti. 155 m below sea level.

Marc | 30.01.21 - 6:55 p.m. | #











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