"Wettin" and I Squadron participated in an exercise in the Skagerrak from 11 to 21 January 1904 and a further squadron exercise from 8 to 17 March. A major fleet exercise took place in the North Sea in May. In July, I Squadron and I Scouting Group visited Britain, including a stop at Plymouth on 10 July. The German ships sailed for the Netherlands on 13 July. I Squadron anchored in Vlissingen the following day, where they were visited by Queen Wilhelmina. The squadron remained in Vlissingen until 20 July, when it departed for a cruise in the northern North Sea with the rest of the fleet. The squadron stopped in Molde, Norway, on 29 July, while the other units went to other ports. The fleet reassembled on 6 August and steamed back to Kiel, where it conducted a mock attack on the harbor on 12 August. During its cruise in the North Sea, the fleet experimented with wireless telegraphy on a large scale and with searchlights for night communication and recognition signals. Immediately after returning to Kiel, the fleet began preparations for the autumn maneuvers in the Baltic, which began on 29 August. The fleet moved to the North Sea on 3 September and took part in a major landing operation. The ships then embarked IX Corps ground troops that had participated in the exercises, transporting them to Altona for a parade before Wilhelm II. On 6 September, the ships conducted their own parade for the Kaiser off the island of Helgoland. Three days later, the fleet returned to the Baltic via the Kaiser Wilhelm Canal, where it participated in further landing operations with IX Corps and the Guards Corps. On 15 September, the maneuvers came to an end. I Squadron went on its winter training cruise, this time to the eastern Baltic from 22 November to 2 December.