Strolling at the Gaithersburg Rio Basic event infoEvent date: 12/16/2023 - 3:00pm to 4:00pmLocation: Gaithersburg Rio 9811 Washingtonian Blvd 20878 Gaithersburg , MD United States See map: Google Maps Maryland US Public event fieldsHarmony Express will be celebrating the holidays at the Gaithersburg Rio, singing at various spots starting at Target at 3 pm. Take a moment to enjoy and say hello! See you there!!