In spite of continued bad weather and her first experience with riverine operations, the ship and her boats remained in the area for ten days, providing the necessary logistics support for the SLF operating ashore. After reembarking the SLF and South Vietnamese Marines on 15 January and then disembarking the latter again at Vũng Tàu the following day, she departed Vietnam to return to the Philippines. The ship arrived at Subic Bay on 19 January, but remained only two days before continuing on to Okinawa where she exchanged BLT 1/9 for BLT 1st Battalion, 4th Marines late in January. Following a visit to Keelung Taiwan where she couldn't get into the harbor due to an impending typhoon, she returned to the Philippines early in February and conducted an amphibious exercise, "Mudpuppy III", with the Marines of BLT 1/4. Another brief rest and relaxation period at Subic Bay at the end of the first week in February preceded her departure from the Philippines on 12 February. "Vancouver" resumed duty with the ARG on 14 February and, two days later, began her part in Operation Deckhouse VI, another two-phase amphibious assault in support of operations of wider scope being conducted ashore. At the conclusion of Operation Deckhouse VI, the amphibious transport dock ship visited Subic Bay; Hong Kong; Okinawa, and Yokosuka, Japan, before departing the latter port on 24 March to return home to San Diego. After a three-day stop at Pearl Harbor at the end of the month, she arrived in San Diego on 8 April. Following an unusually long period in port at San Diego, "Vancouver" resumed operations along the west coast in July. In addition to single-ship underway training, she revisited Vancouver, British Columbia, in July to participate in a Fleet Assembly as part of the Canadian Centennial Celebration. Late that month, the ship resumed local operations which included underway training and amphibious refresher training. That employment occupied her for the remainder of the year and the first month of 1968. On 1 February 1968, the ship departed San Diego bound for Okinawa to begin another tour of duty with the Seventh Fleet. She stopped at Pearl Harbor from 8 to 10 February and, after being diverted from Okinawa on 12 February, arrived in Da Nang on 23 February to disembark her marines, urgently needed to stem the 1968 Tet Offensive. The following day, "Vancouver" got underway for Subic Bay where she arrived on 26 February.