Dogs barking non stop in campsite

AIBU to feel that camp site noise policy guidelines should extend to dogs. We recently had a stay at a camp site we love going to. We park the caravan and the grandchildren and our DDs, their partners and most times friends will join us because it is a time that we set aside every year to dedicate caravan time to our grandchildren. The site is well monitored, very clean and in a beautiful spot with a river where the children can swim and play. This all sounds idyllic however pets are allowed and we have noticed that some owners have multiple dogs with them or some have very young puppies. There are lots of activities onsite so the dog owners go off and leave the dogs tied up either at the tent or caravan this results in barking from multiple dogs all day long. Due to chronic illness I cannot leave the caravan very much and therefore notice it more than most but even when the owner returns the barking doesn’t always stop. I end up with a headache and my husband gets tetchy. We have mentioned the issue to the staff but we are told to approach the owner in the first instance to try and resolve the barking. I do not want to do that I do not want to activate a conflictual environment for me or the children. I also do not think that the dog barking will stop overnight. I did write to the owners and suggested that dog owners be reminded that there is a noise policy in place and that that policy applies to them I think that if I were to sit screaming or singing or shrieking all day and night or my grandchild were screaming all day or we played loud music all day and night that someone might have something to say about that. I also think that the dog owner is taking the dog into an unfamiliar environment then leaving them tied up and for the puppies especially they will have separation anxiety so it’s not a particularly fun time for the dogs. I know and understand that dogs are a huge part of family life for some people but it’s not a break for us when we have to leave the campsite to get a break from the barking. Can I please have some feedback on what others think ? Thank you.