Obama is scheduled to visit the city on May 27, after attending the G7 summit in the Ise-Shima of Japan.
Obama will be the first incumbent US president to visit the atomic-bombed city, NHK news reported.
The officials went over Obama’s planned travel route, including Hiroshima Peace Memorial Park.
They walked around the bombed Dome and stopped by the Hiroshima Peace Memorial Museum and the Peace Memorial Park Cenotaph.
It’s the same path that US Secretary of State John Kerry took last month when he was in the city for a G7 foreign ministers’ meeting.
The officials also inspected the International Conference Centre in Hiroshima.