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Agua Blanca

A Manteno archaeological site and living community inside Machalilla, with a sulphur lagoon.

Updated 31 August 2026

WhereManabi
Nearest cityPuerto Lopez, about 12 km south
Best seasonJune to September
Time to allowHalf a day
Getting thereSigned turning off the coastal road inside the park, then a track; taxi or tour
EntryCommunity fee including guide

Agua Blanca is a village of a few hundred people inside Machalilla national park, living on a site occupied by the Manteno culture from roughly 800 CE until the Spanish arrival, and the community runs the visit itself: a small museum of urns, stone seats and figurines excavated nearby, a guided walk through dry forest past house foundations and ceremonial platforms, and a sulphur lagoon where visitors coat themselves in the mineral mud and wash off in the water. The guides are community members who explain both the archaeology and the plants of the dry forest. Horses can be hired for longer routes, and simple lodging lets visitors stay overnight in the village.

Highlights

  • Manteno stone seats and urns - the excavated material in the village museum.
  • Foundations in the dry forest - the walk through the old settlement.
  • The sulphur lagoon - the mineral mud and the bathing pool.
  • Community guides - the village running its own site.

When to go

June to September for cooler walking, December to April for sun and heat. Half a day. Guides are compulsory and included in the fee. Mornings avoid the worst heat.

Before you go

The archaeology is low foundations and museum objects rather than standing ruins; the guiding carries it. The lagoon smells strongly of sulphur and is muddy, not scenic. The track in is rough and dusty.

Nearby

Puerto Lopez is south; Los Frailes lies on the coast.

What to pack for Agua Blanca

Chosen from what this place is for. Tap a kit for the full checklist.

  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Comfortable walking shoes - Sightseeing means kilometres of pavement and cobbles daily. Find on Amazon
  • Shelter suited to the place - Tent, tarp or hut booking - match it to the terrain and rules. Find on Amazon
  • Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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