The manager of a café in Snowdonia National Park in Wales has written saying they want to be part of the European Water Project "refill scheme" ... and would like us to send a sticker to be put on the door of their café.  The cafe already belongs to another water refill scheme.

Dyffryn Ardudwy Village Hall Community Cafe Y Brif Heol Dyffryn Ardudwy Gwynedd Wales LL44 2BE  

With the address sent to me and a cross check with Google maps, I have identified that the cafe corresponds to node 290006949 . 

https://www.openstreetmap.org/way/290006949#map=16/52.7897/-4.0933  

Is it permissible to edit the node without first hand observation?  

Best regards,

Stuart