Hi Griffla
There is also the option of Cardiff SCAN Club which has its next meeting on Wednesday 13th January and every second Wednesday of the month there after. We have around 100 members and I believe it is the longest established club in Wales at over 30 years (someone correct me if I am wrong}. We hold about ten or more rallies a year at the moment which are open to members only and are £5 on the day (the next Rally is on Sunday 17th January} - which as a member you could attend if you wanted to. We run the occasional coach trip to National Rallies each year. RARE tend to hold a lot more coach trips if its detecting over the bridge you are after.
As a SCAN member you also get access to around 20 Club sites mainly in the Vale of Glamorgan to detect on at your leisure - you just need to check with the farmer on some of them first - but thats rarely a problem. On joining you receive an A4 book with all the maps in. The club land has been used for a long time, but still regularly produces hammered, Roman, etc. Also free insurance in your membership fee.
Joining a club made a huge difference to my detecting and resulted in several long standing friendships.
Heres the link:
www.cardiffscanclub.co.ukHope that helps
Neil