Route number is 21. Remember it—the number stays the same everywhere: on the stop display, in apps, on the vehicle itself. Look for 21 specifically. If you're not sure you found the right stop, just ask someone nearby: 'Does bus 21 stop here?'

This route serves the Manila (Philippines) region. In larger metro areas, routes can pass through several districts or towns. To know for sure if it works for you, pull up the route map and check the key stops and direction.

Key stops along the route: Santa Maria. These are handy as landmarks and transfer points. First time riding? Note down 2–3 stops closest to where you're heading and track them on the map or listen for announcements—easier than missing your exit.

Operator is ES Transport; Malanday Metro Link. This is the official company responsible for the route. If you run into problems (rude driver, breakdown, dirty vehicle, delays)—contact them. It helps to note the time, direction, and route number—makes your complaint more specific and gets handled faster. Contact info is usually on the company website or in transit apps.

This route is part of the 'LTFRB PUB' transit system. Within one network, payment and transfer rules are often consistent. Terms can differ though, so check current fares and payment methods in up-to-date sources before your trip.

Payment methods: cash. In practice, options can vary depending on how new the vehicle is and what equipment it has. Have a backup payment method just in case, and check the validator or ask the driver when boarding.

Limited. Accessibility usually means low-floor entry with ramps and designated spaces. Even when accessibility is stated, conditions can vary on specific vehicles and stops. If this is critical, check the vehicle type for your specific trip and confirm ramp/entry availability beforehand.

Yes. In summer heat, AC is a lifesaver—riding an hour or more in a scorching vehicle is miserable. That said, even if AC exists, they might turn it off (saving fuel or it's broken)—happens sometimes, be prepared. If comfort in hot weather matters, pick trips with newer vehicles and allow time to wait for the right one.