On Monday, December 9th, 2019 at 10.00 a.m. Her Royal Highness Princess Bajrakitiyabha Narendiradebyavati Kromluangrajasarinisiribajra Mahavajrarajadhita attended a volunteer activity at the Correctional Institution Hospital Ratchahton in Lat Yao, Chatuchak, Bangkok by helping paint the front wall of the hospital, planting Yellow Star Trees and releasing microbes in the canal in order to help filter the water. Additionally, she visited the other volunteer events in the area of Prem Prachakon.