Father and son describe their coming-of-age pilgrimage from Australia to Italy on a Vespa – video

Mario Gabrieli, 54, and his 11-year-old son, Leonardo, speak to Guardian Australia from a bamboo bus stop about 150km north of Songkhla, a city in southern Thailand near the Malaysian border. They are three months into their trip from Sydney to Gabrieli's birthplace of Trieste on a vintage Vespa