The Duchess of Cambridge is to launch a £10 million fundraising drive to build a new children's hospice.
East Anglia's Children's Hospices (EACH) - which has Kate as its royal patron - hopes to build the new facility on the outskirts of Norwich.
Kate will join hundreds of guests at the Norfolk Showground today to hear about the importance of the charity from staff and families.
The new hospice at Framingham Pigot will replace its existing Norfolk hospice at Quidenham.
The current Quidenham hospice is the oldest in the UK and has restricted facilities.
Kate will meet families, volunteers and supporters before joining members of the community to watch the launch of the appeal.
This will include presentations from staff and families who use EACH services, to inspire the public to support the campaign.
Planning permission for the new hospice was granted in June but funds need to be raised before building work can begin.
EACH runs other hospices in Cambridgeshire and Suffolk as well as offering services in Essex.
Kate has been patron of the charity since 2012.