In 1920, he journeyed to Italy with his parents, during which trip he produced an enormous number of drawings of people, village scenes and landscapes. He returned to Italy and rented a studio for some months. In Rome, he met W.O.J. Nieuwenkamp who advised him to visit Bali, but Bonnet first went to North Africa. The paintings he did on this trip were exhibited and sold sufficiently to enable him to sail to Bali
Bali
He arrived in Bali in 1929 where he met the German artistWalter Spies and the Dutch musicologistJaap Kunst. With Kunst, he made a trip to Nias, returning to Bali in 1930. He was invitedto live in Ubud in by Cokorda Gde Raka Sukawati. Between 1929 and 1940 Bonnet stayed in Ubud. When Spies moved to Campuhan, Bonnet took over Spies' water palace in Ubud and set up his studio. He became involved in community issues including healthcare and education. He was also very involved in the Pita Maha movement, which encouraged local artists to raise their artistic standards. After the Japanese arrived in Bali, Bonnet remained free until 1942 when he was ordered to be sent to Sulawesi. He spent the remainder of World War II in internment camps in Pare-Pare, Bolong and Makassar. In 1947 Bonnet returned to Bali where he built his house and studio in Campuan. Despite the deterioration in the relationship between The Republic of Indonesia and the Netherlands Bonnet was able to stay due to his relationship with President Sukarno who had collected 14 of his works. He was expelled from Indonesia in 1957 after he refused to finish a portrait of President Sukarno; he was able to return 15 years later.
, 'The palace of Paintings' was constructed according to Bonnet's design to house the collection of high-quality art that Bonnet and Cokorda Gde Agung Sukawati had assembled. Construction commenced in 1954. After his expulsion in 1957 many attempts were made to persuade him to return to Bali. He finally returned in 1972, when he helped expand the museum and organized an opening exhibition.
Death
Rudolf Bonnet died in Laren, Holland on April 18, 1978 after a long illness. His body was cremated and the ashes were brought to Bali where they were burnt together in a great cremation ceremony with his friend Cokorda Gde Agung Sukawati.