I need a key

Had another afternoon off today, (the last one for a while) so off to holywell Pond just in case the Snow goose was an unringed bird.
Just like Chevington on friday, as soon as I arrived it started to hail stone so I dived for cover in the part flooded public hide.
No sign of the Snow Goose which is now at Holywell Dene (I can feel another wild goose chase happening), but there were 2 Greylags and a Pink Footed on the island which later flew north east.
Not much else apart from tufed, Mallard and a couple of Goldeneye. No sign of the Med Gull in with the BH and GBB Gulls.
the hail stopped and I went to the members hide on the off chance somebody was inside and I could sneak in.
Holywell Birder has been telling for ages to get a key for the members hide but I have been putting it off until now, as today it cost me.
As I came to the hide I looked throught the new half finished viewing screen and there feeding on the spilt seed under the feeder was a Juv Water Rail, of course it saw me and ran back into the reeds.
I tried to open the hide but nobody was around. the feeding station to the left of the hide was full of Blue tit, Robin, Great tit, Chaffinch and a possible Brambling was flitting about. Shame I didn't get a proper look it would have been another lifer.
As i watched the feeder I could hear squeeling coming from the front of the hide and a Moorhen flew onto the water followed by a screaming adult Water Rail which dragged its feet along the wateras it flew on to the water and swam out of sight.
A fight in front of the hide and I missed it, I really need a key. The worst thing was I had my camera at the ready but it was all to fast to catch.