Bulusan and Irosin Volcano

Address: Bulusan Volcano / Bulusan Volcano Natural Park area, Bulusan and Irosin, Sorsogon province, Bicol Region, Philippines

Bulusan and Irosin refer to adjacent geographic and municipal areas in Sorsogon province on the Bicol Peninsula of southeastern Luzon. The area is anchored by Bulusan Volcano and the nearby municipality of Irosin.

Outdoor activities focus on short hikes, viewpoints and visits to the Bulusan Volcano Natural Park, which includes forested slopes and crater lakes. Irosin provides access, local services and several natural hot springs that draw domestic visitors.

Bulusan is an active stratovolcano; the volcano and immediate surroundings have been protected as a natural park to manage recreation and conservation. Irosin has developed as the nearby municipal center providing transport links and accommodations for park visitors.

The pair sit in Sorsogon province on the southern part of Luzon, with Bulusan Volcano rising above the surrounding lowlands and coastal plains of the Bicol region.

• Active volcano: The volcano is classed as active and lies at the core of a protected natural park that contains trails and crater lakes.
• Hot springs: Irosin is locally known for accessible hot springs used by residents and visitors for bathing and relaxation.

What to See#

• Bulusan Volcano: A stratovolcano with forested slopes and crater lakes, managed as part of the Bulusan Volcano Natural Park and popular for short treks and viewpoint access.
• Irosin town: A town in Sorsogon province noted for municipal hot springs and local resort facilities that serve visitors to the volcano park and surrounding countryside.

Bulusan Volcano and the town of Bulusan, plus nearby Irosin, are in Sorsogon province (Bicol). Drive or take a provincial bus along the Maharlika Highway (Pan‑Philippine Highway, AH26) from Sorsogon City or Legazpi to reach Bulusan; the road journey from Sorsogon City to Bulusan town is a short drive by car. Regular intercity buses and vans serve the Sorsogon corridor, and local tricycles/taxis cover short transfers to Bulusan and to nearby Irosin.

• Best time: hike Bulusan Volcano in the cool early morning for the clearest crater and lake views and to avoid afternoon cloud build-up; visit Irosin's hot springs in the evening when pools are quieter.
• Entrance/use: register at the Bulusan Volcano Natural Park's visitor/registration point before starting trails and check with park rangers about trail conditions and closures.
• What many miss: take the short trails to Bulusan Lake and the nearby viewpoints rather than just driving past-pair a morning hike with an evening soak in Irosin's local hot-spring resorts to experience both the park and town offerings.