Sagada Cave Connection (Lumiang to Sumaguing)

best Nov–Apr; flood-risky in the rains

An overnight bus from Manila gets you to Sagada for the legendary four-hour 'cave connection.' You enter Lumiang Burial Cave past a wall of carved hardwood coffins stacked nine layers high (the oldest around 500 years old), then disappear into the mountain — rappelling down rock shafts on guide-held ropes, squeezing through tight gaps, clambering barefoot over slick flowstone, and wading waist-deep through cold underground streams before climbing up and out through Sumaguing. Local's tip: guides are mandatory and arranged on the spot at the Sagada Tourism Center, the full connection is for fitter spelunkers (a shorter Sumaguing-only trip exists for the less brave), and you want shoes you can soak and ruin — go in the dry months, as the caves get dangerous after heavy rain.

Source: guidetothephilippines.ph