His Royal Highness Crown Prince Maha Vajiralongkorn will again lead the Thai people, both inside the country and abroad, on a 29-kilometre cycling trip, called "Bike for Dad", on Dec 11 to mark His Majesty the King's 88th birthday, which falls on Dec 5.
Suriyan Sujaritpolawong, an adviser to the organising committee, said the event will be held on Dec 11, starting at 3pm.