To find local baby groups in the UK, you can use the following methods:

Ask Your Health Visitor:
- Health Visitors often have information about local baby groups, as they are involved in community health. They can provide you with details or refer you to relevant services.

Search on the NHS Website:
- Visit the [NHS website](https://www.nhs.uk/) and use the search tool to find baby groups in your area. You can enter your postcode and search for "baby groups" or "parenting support."

Children’s Centres:
- Local Children’s Centres often host baby and toddler groups. You can find your nearest Children’s Centre by searching on your local council’s website 

Library Storytimes:
- Many local libraries run storytime sessions for babies and toddlers. Check your local library’s website or ask in person for details.

Local Community Halls and Churches:
- Community halls, churches, and other local venues often host baby groups. You can check their noticeboards, websites, or contact them directly for information.

NCT (National Childbirth Trust):
- The NCT runs baby groups and classes across the UK. Visit the [NCT website](https://www.nct.org.uk/) and use their search tool to find activities in your area.