Map Dwr (in all its forms) forms the Towards Hydrocitizenship, Cymerau case study's key participatory arts engagement methodology and strategy. It is also the digital strategy for recording and disseminating the wider project activity, and forms a creative digital entity in itself. It was devised through co-working of the Cymerau Hydrocitizenship Case Study team with specific reference to previous participatory arts mapping work undertaken by Tom Payne in his PhD “Locating National Theatre Wales: A Practice Based Enquiry into the Theatre Map of Wales and Practices of Location" (2015).