Dogs are not allowed to swim in the lake and are also not accepted on the main beaches!

At most Balaton beaches dogs are prohibited. There are very few beaches where you can take the dog yet.
Dogs in Lake Balaton are generally prohibited. Infringements (if you are caught) in fines.

Please inform yourself beforehand whether you can bring your dog to the beach of your choice. In the lake itself, there is nowhere allowed to bring the dog in. If you want to plan a fishing trip and take your dog as a faithful companion, you should rather choose a section or a beach lonelier where there is no possibility of development by the shore for swimming or sunbathing.