Posted: Tue Feb 12, 2008 10:46 pm-
Hello!
By an extended period of time I would assume you are talking about a period of over 6 months. You can enter the uk as a tourist for up to 6 months.
If they are planning on joining you for any longer and / or working they will need visas.
IF you have an ancestry visa concievably they would be able to apply for one as well. This of course is the easiest visa to obtain provided you can prove lineage. That is easiest beside the Working holiday maker which is not relavent in this case.
If for whatever reason this is not an option have a look at the UK visa's site and there's a section on family:
http://www.ukvisas.gov.uk/servlet/Front?pagenam...=1018721067523#Q4
Hope this helps.
Cheers.