Travis Kelce apparently had a helluva time down undah last month ... saying this week he loved his trip to Australia to see Taylor Swift -- praising the Sydney zoo ... and the crowd that showed out for her "Eras" tour performance.
The Kansas City Chiefs star gushed about his Feb. 22 visit to see his girlfriend on the latest episode of his "New Heights" podcast ... talking about it all with his brother, Jason Kelce, for around 15 minutes.
He spoke about the huge amount of media attention he received -- noting that cameras surrounded him the second he touched down at the airport.