Grammar help needed please! Girls/girls'

[Fantasisa]

Is it Athletics Summer Residential for Year 6 Girls'

or Athletics Summer Residential for Year 6 Girls?

I think the first one, because the residential belongs to the girls but I am now second guessing myself. Mumsnet grammar help needed please?

No it's just girls.

You don't need an apostrophe - you've covered the possession because you've used the word 'for'

Thanks! Can you explain why please so I know for next time?

X Post. Ahh I see, no wonder it was bugging me.

It's the second one - just plural of girls.

It would be the first one if you were saying Girls' Residential, but as you've used 'for' that denotes the posession.

you only need to bring the apostrophe in if it's a residential for something belonging to the girls
eg
residential for Year 6 girls' pet dogs

No apostrophe as it's not indicating possession of.

'The girl's mother..' (One girl)

The girls' mother.' . (More than one girl.)

Unless it's that type of construction, you don't need an apostrophe.