Manila, April 16 -- The Antipolo City government and an environmental watchdog on Wednesday called on participants of the "Alay Lakad," a sacred tradition celebrated every Maundy Thursday, to maintain the cleanliness of the Antipolo Cathedral.

"Let us honor this sacred tradition with respect for our environment. A clean city reflects our discipline and devotion," Mayor Casimiro Ynares III said in a statement.

Pilgrims from different parts of Metro Manila join the Alay Lakad or walking pilgrimage to the church, also known as the International Shrine of Our Lady of Peace and Good Voyage.

They do this to fulfill their promise, affirm their faith, seek divine intercession, or give thanks for blessings and favors received in the past year....