Bydd y lluniau yn cyd-fynd â’r ymgyrch hysbysebu sy'n dechrau heddiw ar drafnidiaeth gyhoeddus, posteri a byrddau o amgylch gorsafoedd trên Cymru, sy'n dangos grwpiau o bobl braich ym mraich.
The photographs will complement the advertising campaign, which commences today on public transport, and posters and billboards around Welsh railway stations which shows groups of figures linking arms.