Bohol sits on a limestone karst platform, and the interior is riddled with the result: cave systems, sinkholes, and spring-fed cave pools spread across nearly every inland municipality. Anda’s cluster of cave pools on the eastern peninsula is the most-visited grouping — several linked by a single guided circuit — but caves this size show up as far north as Danao and as far south as Guindulman, usually with a local guide requirement and a modest environmental fee rather than any real infrastructure.
Depth of documentation varies sharply: some entries here are full show-cave writeups with access details and safety notes; others are a single paragraph noting a cave exists in a particular barangay, because that’s genuinely all the provincial inventory recorded. Bring a headlamp and closed shoes regardless of which kind you’re visiting — very few of these are lit.