After reaching San Pedro on 14 July, the tender received orders to continue on to the east coast. Departing San Pedro on the 25th, "Beaver" escorted eight H-boats and four L-boats south toward the Panama Canal. As the submarines were small, and suffered from engine breakdowns, the tender had to tow as many as three submarines at a time during the long stretches between ports. The convoy stopped at Magdalena Bay and Acapulco in Mexico and at Corinto, Nicaragua, before mooring at Coco Solo in the Canal Zone on 28 August. Following two weeks of repairs, the convoy transited the canal on 11 September and arrived at Hampton Roads, Virginia, via Key West, Florida, on the 29th.