Public Works Secretary Mark Villar, Environment Secretary Roy Cimatu, and former President and Manila Mayor Joseph Estrada (from left) lead the launch of desilting operations under the Sagip Manila Bay Program at Baywalk Roxas Blvd., Manila on Tuesday, March 5. An estimated 225,000 cubic meters of silt will be removed initially from a 1.5-kilometer stretch of Manila Bay from the Manila Yacht Club breakwater to the United States Embassy in Manila.