Following a warning from the United States' State Department, Carnival Cruise Line canceled visits to the port of Izmir, Turkey on all upcoming voyages of Carnival Vista, the newest and largest ship of the line.
Instead, all sailings through October will call at Kusadasi, Turkey which is not in the government-issued advisory.
"Several of our sister cruise lines have called there in recent weeks with very positive feedback."
The letter cited the proximity of Kusadasi to the ancient city of Ephesus, popular bucket list attraction for vacationers.
Izmir was specifically named in a travel advisory from U.S. State Department issued on March 29, which warned against unnecessary travel to southeastern Turkey because of an increased risk of terrorist activity targeting American travelers.