Where to buy sanded grout in the UK?

[Motherdragon]

I'd like to have a go at making a platform and rocks but am having trouble finding sanded grout here in the UK, can anyone point me in the right direction?

 

[quyllur]

You should be able to get at your local hardware store, but if you can only find un-sanded grout, you can certainly use that , and if you still want the sandy texture you can just add some play sand to your sealant material.

 

[Motherdragon]

Thank you!!