Ogof Hesp Alyn

[John Nicholson]

What if it decides to flood after cavers have gone past the sand crawl?

[Ian A]

You'd be in for a wait until it recedes  

[John Nicholson]

Have any sort of provisions been stored in case this were to happen? Is there any communication system or rope to transmit movement through the places that flood?  Is that what the telephone wires were for originally?

[Ian A]

1) Cavers should leave details of their trip (and time out) with a responsible adult who can alert rescue if there is a problem (you make your own provision)

2) Communication system - no (there isn't in any other caves either)

3) I think Murf put the phone wire in and I think it was for emergencies. However, it is easier ro fathom quantum mechanics than it is Murf's brain  

Ian

[mike leahy]

[quote="Ian" post=20500]1)  However, it is easier ro fathom quantum mechanics than it is Murf's brain  

Ian[/quote]


lmao            

[Tim Watts]

[quote="JohnNicholson" post=20497]What if it decides to flood after cavers have gone past the sand crawl?[/quote]

You either

a) Die of hyperthermia
b) Drown
c) Starve

or possibly and most likely a combination of all three which is why OHA is a grade 5 cave and should not be underestimated. Added to that, any attempt at a rescue from its deeper reaches would be very very difficult even in non flood conditions.

[Les Williams]

[quote="timwatts" post=20506][quote="JohnNicholson" post=20497]What if it decides to flood after cavers have gone past the sand crawl?[/quote]

You either

a) Die of hyperthermia
b) Drown
c) Starve

or possibly and most likely a combination of all three which is why OHA is a grade 5 cave and should not be underestimated. Added to that, any attempt at a rescue from its deeper reaches would be very very difficult even in non flood conditions.[/quote]

Although you could always exit through the second entrance (if you find it soon...)  :whistle:

[Tim Watts]

preciexactly! :-D

[Frank Hill]

Tim
I'd still like to get an overlay of the OHA system onto an OS map. I still reckon that by drawing an arc rotating it around using the 'end' of the cave as a scribe will give us an idea where the end might be, ie somewhere on that arc, I'm particularly interested where it would intersect with the river.
Has Mick got one?

[mike leahy]

tim's got one frank

[Tim Watts]

got some more elevation data at home somewhere too.

[Frank Hill]

Oh yes
That will do for starters
Thanks

[Frank Hill]

Interesting
If you look at the plan of poachers the end of the cave shows it quite a distance from where it actually is, am I correct?

[Frank Hill]

I also notice some small squares on the map, is this anything significant? Known sinks for example?

[Rostam]

Is the river flowing at the moment? And does it ever flow along the river bed near the entrance?

The river bed was looking remarkably vegetation free...  :unsure: