Hidden Valley Springs, Alaminos, Laguna

Hidden Valley Springs is one of the Philippines' most genuinely therapeutic natural retreats — a series of seven distinct mineral spring pools inside a prehistoric volcanic crater in the mountains of Alaminos, Laguna. The springs range in temperature from cool to warm to almost-hot, each with its own mineral composition and claimed therapeutic properties, from sulphur pools reputed to help skin conditions to warm mineral baths that ease muscular tension.

The property is entered via a steep forested trail that descends 60 metres into the crater — the same trail that has been used since the resort opened in the 1960s as one of the Philippines' pioneering eco-resorts. Once inside the crater, the canopy of 200-year-old trees creates a cathedral effect — giant fig trees, molave hardwood, and tropical ferns completely block out the sky, maintaining a constant cool-warm microclimate even at the height of the Philippine summer. The springs themselves are set in natural-looking stone pools fed by continuous mineral upwellings.

The resort's signature experience is moving between pools — the sulphur pool, the cold spring, the warm mineral pools, and the heated cascade — in an alternating hot-cold circuit that stimulates circulation and leaves you feeling genuinely renewed. An inclusive buffet lunch of Filipino comfort food is served in the crater's open-air restaurant. Hidden Valley limits daily visitors, maintaining an uncrowded atmosphere that has made it a consistent favourite among Manila's wellness community since the Marcos era.