So you need to find caravan insurance. Find the specialist agent who will know the proper coverage for your situation. You have different insurance needs than the person with a regular auto.
You need to find a company that understands your needs and has the experience and proper policies to cover your insurance needs. You will of course need basic liability coverage that all vehicles require. But you also need to have an uninsured driver coverage.
This is to protect you from accidents with the driver who has no coverage. In this case your insurance will cover the damage to your vehicle and injuries to your passengers in case the driver at fault has no insurance.
You also need with the size of your vehicle coverage for when your caravan is being towed. The tow company has liability coverage but you still should have your own coverage in this instance.
Insure your caravan against burglary and vandals. This is your home and you carry many of your possession. You treat your caravan as your home so insure it like your home.
The caravans are prime targets for vandals and burglars looking to make a quick steal and run off with your possessions. So get a policy that is like a home owners policy.
You will be driving in many different weather situations. So you need to be covered for natural disaster. This might mean rain or snow or even flood.
You will not be able to predict the weather and you cannot choose your weather. So make sure you have a policy to cover this damage. So you need to find caravan insurance agents who specialize in this insurance need. One way is to ask your friends with these vehicles about their van insurance quote rates. Ask them for the contact information of their agent if they are happy with his coverage.