Sierra Bullones: Bohol's Highest Interior and Its Guerrilla-Era Refuge

Sierra Bullones occupies a ridge-and-valley zone in Bohol’s east-central interior, among the most elevated ground in the province — its name Spanish for a mountain range, and some of its ridges reach above 500 metres. The cooler air relative to the coastal towns marks it apart from most of Bohol’s tourist zones. Corn, upland rice, root crops, and fruit trees fill the hillside farms; some residents work small-scale logging and charcoal production, activity that has thinned forest cover on certain ridgelines. The poblacion sits in a mountain valley, reached by a highway that climbs steeply from the lowlands.

The municipality borders Candijay to the southeast and Bilar and Batuan to the west, with Dimiao to the southwest; streams from its highlands feed the Loboc River system westward and other rivers running east toward the Mindanao Sea. Its elevated, remote character made it historically difficult to administer from the coast, and it was constituted as a municipality from neighboring lowland parish territory during the American-era reorganization. Bohol’s mountain interior — Sierra Bullones among it — had already served as a natural refuge zone since the Dagohoy Revolt of 1744, when Francisco Dagohoy led an uprising that held out for 85 years in Bohol’s highlands before its 1829 suppression, the longest-running revolt in Philippine colonial history; the same terrain sheltered resistance fighters again during the Philippine-American War.

The patron saint is San Isidro Labrador, observed 15 May, consistent with the farming character of the town; highland barangays keep folk-Catholic kandiriko candle-lighting rites tied to planting and harvest. Cebuano carries distinct mountain-dialect features here, noted by linguists studying Bohol’s interior speech communities.

What’s here, briefly

Ridgeline views — clear-day sightlines reach the Mindanao Sea to the south and the Bohol Sea to the north, with the Leyte coast visible on the clearest mornings.
River Trekking, Barangay Danicop to Barangay Canlangit — the municipality’s flagship organised activity, a 10-kilometre route that follows the Wahig River’s riverbed through several barangays, crossing exposed rock formations and fast-moving sections along the way. It is not a walk-in activity: the Sierra Bullones Municipal Tourism Office books it in advance, coordinating with the hosting barangay and requiring the barangay captain’s approval before a session is confirmed. Under the municipality’s 2026 Citizen’s Charter, the published fees run ₱50 individual entrance, ₱600 for a guide, and ₱20 for a buko (coconut) refreshment at the end, with group bookings adding a ₱200 transport fee and a ₱100 certification fee — participants sign a waiver, sit through a safety briefing, and receive a certificate of participation afterward. The municipality’s own checklist asks visitors to bring non-slip sandals, a change of clothes, a cap, a waterproof bag, food and water, and a first-aid kit, since no gear rental is available on site. October–November, just after the rains ease, gives the best balance of water level; the office advises against the July–September typhoon window, when crossings turn hazardous.
Wahig River — the river the trek follows, and the upper tributary of the wider Wahig-Inabanga River System and Watershed, one of Bohol’s more significant drainage basins. It rises in Sierra Bullones’s mountains and threads through Danao and Pilar before joining the Inabanga River on its way to the Bohol Sea, making Sierra Bullones — unusually for a landlocked town — the headwater source for water that other municipalities downstream depend on for irrigation.
Dompor Farms — an agri-tourism property in Barangay San Agustin, built around working rice terraces and a mixed planting of local flora; rice remains the backbone of the inland economy here, and farms like this one are opening working fields to visitors as a secondary income stream rather than converting them into standalone attractions.
Forest trails — secondary and remnant forest on the steepest slopes, informal and unmarked; poblacion guides can be arranged for ridge walks.
Upland farms — terraced hillside plots of corn, sweet potato, and fruit trees, a different agricultural picture from coastal Bohol.
Loboc River headwaters — the system’s upper tributaries rise near here, a quieter counterpart to the well-touristed lower river at Loboc town.

Getting there

From Tagbilaran City, the route runs 1.5–2 hours by jeepney or bus via the Bilar road, then up the mountain ascent to the poblacion; jeepneys depart the Dao Terminal area, and the paved but narrow ascent favours private vehicle hire over public transport. From Jagna on the southern coast, habal-habal covers the mountain road in 45–60 minutes, with sea views across the Mindanao Sea on the climb. For River Trekking specifically, there is no direct public transport to the Danicop trailhead — the Municipal Tourism Office arranges logistics and guide assignment as part of the booking, so contact them ahead rather than expecting to arrange transport informally on arrival.

Local economy

Corn, upland rice, root crops, and fruit trees carry most households, with some residents supplementing farm income through small-scale logging and charcoal production — activity that has visibly thinned forest cover on a number of ridgelines and is the clearest environmental cost of the town’s cash-poor upland economy. The municipal tourism office’s push to formalise River Trekking as a bookable, fee-generating activity, complete with barangay-level coordination and a published charter of fees, is a small but deliberate attempt to build an alternative income stream around the same forest and river resources rather than around clearing them.

Local taste

The cool highland climate supports crops that struggle at lower Bohol elevations — sweet potato varieties, highland corn, and leafy vegetables. Corn (mais) stands alongside rice as a staple, eaten as mais na lugaw or roasted; wild fern fronds (pako), gathered from forest edges, are a common upland vegetable dish, and some farming families harvest wild-colony honey sold informally at the poblacion market. The buko included in the River Trekking package — one coconut per trekker, priced into the ₱20 add-on fee — is a small but telling detail: even a formalised adventure-tourism fee schedule here still runs through the same farm produce the town is built on.

Practical realities

Accommodation: none in Sierra Bullones — the nearest guesthouses are in Bilar or Tagbilaran. Pack a layer: the poblacion runs noticeably cooler than the coast, especially January–February evenings and after rain. Route choice: the Bilar road is the more reliable approach; the Jagna route is scenic but narrow, better by motorcycle or 4WD. Timing: mornings give clearer ridge views before afternoon cloud builds over the peaks. Booking ahead matters: River Trekking and farm visits both run through the Municipal Tourism Office rather than as walk-in activities — contact them before travelling into the interior, since informal arrangements at the trailhead are not how the system works here.

Other places to consider

Bilar — the nearest town with accommodation, on the approach road.
Candijay — bordering to the southeast.
Jagna — the southern-coast approach and its habal-habal mountain route.
Loboc — downstream on the same river system, for the developed lower stretch.

Route and terrain detail reflect publicly available information as of 2026-07-16. Confirm road conditions before travel. bohol-philippines.com earns a commission on bookings made through partner links at no cost to you.