Thanks to @rollyoaks for this info from lucky fan Bon.
So this lucky fan was taking part in a Go Skateboarding Day parade in Pasay when he spotted a clue box and eventually Phil himself at Rajah Sulayman Park/Malate Church.
He managed to see Brooke & Robbie doing the task which involved them pushing a sidecar/tricycle across the street (Roxas Blvd?) toward Manila Bay. They then loaded it with TONS of stuff, boxes, bananas, etc. They tied all of it up, likely to secure it, the owner of the sidecar spun it around and nothing fell off. So he assumes the task was to secure all of the stuff onto the sidecar without any of it falling off.
That fits with the
earlier sighting seeing a team pushing the pedicab near Rizal Park/Luneta.
But damn, that's a long way (Luneta to Malate Church) to be pushing a tricycle. And down Roxas Blvd too!? lol Should be an interesting and fun task.