Sam,
Official dig days are the second Sunday of the month, 10am – 3pm. I'll send you a copy of the last email we got from Martin Charlesworth at Forest of Bowland AONB – he's the chap to contact to get on the mailing list. There's a link in the email which has details of where we're currently meeting.
As for the extra dig days we've just started, Stumpyjon's the one doing his best to keep the rest of us in line. His email's in his profile, but I'll send you a copy of his last email too. Then you'll know as much as we do! 🙂
Come on down, the more the merrier! Many hands make light work! Too many cooks… er, on second thoughts, scratch that one… 😕 😀
Tony