Save Withybush Action Team campaigners and those opposing changes to health care services in Pembrokeshire are heading to the Senedd on Wednesday.
Hywel Dda University Health Board will move neonatal care to a level 2 unit being developed at Glangwili along with paediatric trainees.
Complex obstetric services will also be moved to Carmarthen.
Pick up points and times for those heading to Cardiff can be seen in the accompanying picture.
For further information see www.pembswat.org.uk.