Background

Governing boards are recommended to prepare and approve a policy on Governors’ visits, in consultation with their school. Governors should plan visits to learn about a wide range of school activity and each visit should have a clear focus. These visits assist in enabling Governors to fulfil their statutory responsibility for the conduct of the school.

NGA - School monitoring visits: guidance and planning tools 
https://www.nga.org.uk/knowledge-centre/school-visits-guidance/

GovernorHub 
https://schoolgovernors.thekeysupport.com/policy-bank/leadership-governance-policies/governor-school-visits-model-and-examples/

DfE Guidance

Governor visits