The Jesús de la Peña Chapel, also known as the San Isidro Labrador Church, is the oldest surviving religious site in Marikina. It stands on a rocky outcrop in Barangay Concepción Uno, where Augustinian missionaries established the first place of worship in the area during the Spanish colonial era. The chapel is a small structure compared to the city's main parish church, but it has a quiet, atmospheric quality that the larger church lacks.
The site is not on the standard tourist circuit — most visitors to Marikina never make it here — but it rewards the detour if you have the time. The immediate surroundings are residential and unremarkable, but the chapel itself is well-maintained and the grounds are peaceful. It is a manageable distance from the city centre by tricycle or on foot for those happy to walk.