 Loaded with supplies and personnel for Operation Crossroads, "Avery Island" sailed on 6 May as a unit of Joint Task Force 1.The ship reached Pearl Harbor on 14 May and got underway again on 22 May, bound for Bikini Atoll.The ship entered the lagoon there on 1 June and carried out instrumentation tests during Operation Crossroads, tests to determine the effects of atomic bombs on ships.