Do you mean campervan insurance, similar to the insurance that you would have on your car, or do you mean holiday insurance similar to what you have when going abroad?
If you are hiring a campervan it will presumably include insurance & also breakdown insurance, yes? You don't need travel insurance in the UK, we have the nhs.
Holiday insurance is not just about covering medical treatment, it also covers cancellation due to illness, redundancy etc, and personal belongings etc. You may of course be covered by existing policies, best advice would be to check this out.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets