Hindi ko sure exactly kung saan sa Marikina, pero alam ko may testing centers talaga sila for residents na libre, best way is to call the Marikina City Health Office directly or check their Facebook page kasi laging updated doon ang locations at requirements! One of my mum friends did hers last year and sabi niya kailangan lang ng valid ID at proof of residency, super convenient talaga ng Marikina.