Hi I am flying from glasgow to christchurch via dubai and sydney on my own for first time. I am flying economy class and would really like to have a shower at both stops. Where do I go? The marhaba lounge at dubai is quoting 48GBP plus extra if you want a shower! There is also a gforce spa? Can anyone help me with what my best options are? a £50 shower is not my idea of appropriatte!!

Thanks
Alison