IMPASUGONG, Bukidnon — As dusk settles over the limestone mountains of Barangay Capitan Bayong, a glass house begins to glow — its warm lights reflecting off the rugged terrain and hinting at a new attraction rising quietly on the outskirts of this Bukidnon town.

The structure stands within Sinakamomo Farm Resort, a 1.8-hectare property nestled near the town’s famed communal farm. Resort operator Dr. Milaflor Torrefranca believes the glass house will soon draw curious travelers looking for something both scenic and steeped in story.

“This place has so much potential,” Torrefranca told the Daily Tribune on Monday. “It’s not just about the view — it’s about the land, the culture, and the stories that live beneath it.”

A Higa-onon tribal leader herself, Torrefranca said the limestone mountain sits atop an underground river that continues to flow even during the dry season. The Department of Environment and Natural Resources has already classified the area as a potential tourism site.

Beneath the resort, however, lies a mystery that has long fueled tribal lore.

According to elders, a massive cave system runs under the mountain, fed by a crystal-clear spring. Its entrance — a gaping, 80-meter-deep hole in the earth — remains largely unexplored. Among locals, it is considered sacred and forbidden.