Last week, BT confirmed that its wireless broadband network now numbers a million hotspots across the UK. To mark the occasion, they’re throwing a party dubbed Thanks A Milllion at the super-cool Jetsons-style environs of the BT Tower.

And thanks to BT’s Hunt for Tw-easure Twitter competition that’s just started this week, you could be in attendance, too. Just so long as you can follow the clues leading you to the millionth hotspot, that is.

Unfortunately, unlike most treasure hunts, this (WiFi spot) isn’t marked with an X. Instead, if you want to make like Long John Silver, you’ll have to head to BT OpenZone’s Twitter feed and try to work out the location from the info that BT drip feeds you.

If you’re lucky enough to nab first prize, you’ll get two tickets to the bash as well as a choice of either 12 months free BT Total Broadband Option or 12 months free BT Business Total Broadband Option 2. Five runners-up will receive a pair of passes for the party and a BT Openzone Original subscription. This offers 500 minutes of internet access a month at thousands of BT Wi-Fi hotspots.

At the time of writing, just one cryptic clue has been released into the web ether (apparently it’s in an East Midlands city beginning with ‘L’). But we’re promised another one this afternoon...