After a few days of museums and steep hills, a day in natural hot springs is a welcome change of pace. The Termas de Colina lie in the mountains east of Santiago, reached by a scenic road that winds up a river valley with the Andes closing in on both sides. Chile has hundreds of thermal sources thanks to its volcanic geology, and the pools here are fed by mineral-rich water that emerges from the mountain at a high temperature and is channelled into stone or concrete basins at different heats. You can move between warmer and cooler pools, sit with a view of rocky peaks and finish the day with a picnic or lunch. Trips from Santiago generally include transport and entry, and some add a stop at a viewpoint or village on the road up. The surrounding landscape is dry, rugged and quiet, and in winter the high peaks can be dusted with snow, which makes sitting in hot water especially pleasant. The experience suits people who like to unwind rather than hike, and it combines well with a hiking or sightseeing day in the same canyon on another day. Facilities are simple compared with a hotel spa, with changing rooms and basic services, so expect a natural, outdoorsy atmosphere instead of a polished wellness centre.
How it works
Tours pick you up in the city, drive about two hours into the mountains and spend several hours at the springs before heading back. Check whether lunch, towels and entry are included, because formats differ. The road is paved but winding, so bring something for motion sickness if you are prone to it.
What to expect
Pools vary in temperature, so test the water before getting in and take breaks, especially at altitude. Showers and changing facilities are basic. On busy summer weekends the pools can be crowded, while weekdays and winter are calmer. Keep valuables to a minimum and use the lockers if offered.
Making the most of it
Bring a swimsuit, a towel, flip-flops, sunscreen, water and a warm layer for the drive back. Avoid alcohol before soaking, drink plenty of water, and limit time in the hottest pools. Travellers with heart conditions, high blood pressure or pregnancy should check with a doctor first.
What to expect
The experience
A guided day trip with transport to natural thermal pools in an Andean valley, with time to soak, relax and have lunch.
Best time
Winter, when hot water feels best against cold air, or any weekday for quieter pools.
How long
Eight to ten hours including travel, with several hours at the springs.
Tips
Bring a swimsuit, towel and flip-flops, drink plenty of water and avoid the hottest pools for long periods.
Quick picks
- Best for
- Travellers who want to relax in nature after busy days of sightseeing.
- Families
- Children can enjoy the cooler pools, but watch them closely around hot water.
- Couples
- A calm, scenic soak with mountain views and no schedule is an easy romantic day.
- Pair with
- A rafting or hiking day in the Cajón del Maipo, planned for a different date.
- Time needed
- A full day.
Good questions
Are the hot springs natural?+
Yes, the water comes from natural thermal sources in the mountains and is directed into pools of different temperatures.
What should I bring?+
A swimsuit, towel, flip-flops, sunscreen, a hat, water and a warm layer. Check whether towels and food are provided.
Is it open all year?+
Hot springs are usually open year-round, though road conditions and hours can change in winter. Check before you go.
Is it suitable for children?+
Yes, with supervision. Temperatures vary by pool, so keep young children in the cooler areas.
Can I combine it with another activity?+
Some trips add a scenic stop or lunch. For hiking or rafting, plan a separate day, as the springs deserve a relaxed pace.
