I used to work at Flamingo Land for my first ever job! Bad times lol.
Actually only lived 20 minutes from the place.
Did a bit of looking around for you Rich.
T-Mobile/Orange & Three all have variable amounts of 3G coverage - so might be worth you picking up a PAYG dongle next time your up there.
Apparently Orange has Low 3G coverage, and T-Mobile has Moderate. This is strange as those networks have combined, unless it doesn't combine when using mobile broadband, as it needs to be activated physically by making a text on a phone connected to one of the 2 networks.
Oh, you're too kind

I've had an O2 mobile broadband contract for the best part of 2 years, I used to have a Three mobile and it couldn't get any signal at all when I was at Flamingo. Odd. Bizarre even!
Back when I dropped out of college I looked at working there, my step-dad has had a caravan there for as long as I can remember so it'd have worked out nicely. I had a change of heart and setup my own business and here we are almost 4 years later

I still go up there as much as possible though, it's a great break away from the madness of work - plus they do have some great coasters, not as good as the old days with Bullet and Magnum though!