I need a logo, an A4 heritage trail map, an A5 design for QR codes and an A2 poster.

I am doing a heritage project in the Buller District where people can scan QR codes on buildings and museums to access their digitised online collections. The buildings will be part of a heritage trail around the region so I will need a map that people can follow. The poster will be advertising the heritage trail. The branding needs to be instantly recognised for what it is (i.e. it needs to look different to the Covid QR codes!).