Travelling to Isle of Wight with the van

so guys n gals 

i am thinking about going to the isle of white on one of the caravan club sites over there how many people have done it?  do you have to take anything eg passports ect?  also i have 2 dogs will they be allowed to go aswell? do they have to be fully vaccinated? i have looked around the site and am unable to find a lot of info regarding traveling to the isle of white there seems to be a lot about travelling to france ect but very little on the isle of white a little info would be great as this will be the first step on the going over the water with the van and our little family 

cheers

steve