Macmillan Cancer Relief is aiming to reach men and other people reluctant to ask questions about cancer through a nationwide tour.
Those most at risk of cancer - such as people over 65 - are the least likely to ask for information, according to research published by the charity to coincide with the tour, which visits 40 towns across England and Wales during the summer.
The Macmillan Mobile Information Centre will visit 40 areas of low cancer information take-up and services. Macmillan information staff and nurses will offer free advice and information on all aspects of cancer - from prevention to different treatments - and on cancer services and support groups in local areas.
The outreach project aims to reach people who would not usually call a helpline or pick up a pamphlet in a GP's surgery.