What is the fine-grained topic of the following text: It is an international tournament that will take place on the 29th and 30th of June, which will feature some of the main European footvolley athletes, the main stage being one of the most traditional places, the beach of Buarcos in Figueira da Foz. Only return the topic.
International Footvolley Tournament in Buarcos Beach, Figueira da Foz