AquaFonte lists 5 verified thermal springs in Philippines, each with its own page: temperature, minerals, treatments, and directions.
Water types found
Springs
Ardent Hot Spring
Camiguin (Mambajao) · 40°C
A tiered natural hot spring at the foot of Hibok-Hibok Volcano on Camiguin Island, with pools ranging from about 33°C to 40°C surrounded by jungle.
Hidden Valley Springs
Laguna (Calauan/Alaminos)
A 110-acre rainforest retreat in Laguna built around natural hot and cold spring pools fed by the volcanic geology of Mount Makiling and Mount Banahaw.
Maquinit Hot Spring
Palawan (Coron, Busuanga Island) · 40°C
One of the very few saltwater hot springs in the world, on the mangrove-lined southeastern coast of Busuanga Island near Coron town.
Palm Grove Hot Springs and Mountain Resort
Benguet (Tuba)
A mountain resort on Asin Road near Baguio where natural hot spring water, pumped from an underground source, fills private soaking tubs.
Puning Hot Spring
Pampanga (Porac) · 70°C
A geothermal spring area in the lahar canyons at the foot of Mount Pinatubo, with volcanically-heated pools reaching up to 70°C.