Termas Comanjilla

What to expect

Comanjilla is a small community in the municipality of Silao, in the hills between León and Silao in central Guanajuato. Hot water rises here along a geological fault at the foot of the Sierra de Guanajuato. There are two ways to use it: the Termas Comanjilla day park and the Hotel Misión Comanjilla next door.

The day park, which ADN40 also calls the Parque Acuático Comanjilla, is a family balneario. It has water slides, a wave pool, a fountain and natural thermal pools filled from the fault. ADN40 notes that the thermal pools are shallow enough for both adults and children, which makes it an easy place to bring young kids. There are lawns set up for picnics, and you can bring your own food.

The hotel is the quieter, more comfortable option. Hoteles Misión says its hot spring water rises naturally from the ground and keeps two large pools hot at all hours. It also runs a traditional temazcal (sweat lodge) that it describes as built over a geyser in constant boil, plus the Spa Raíces, a restaurant (Del Pueblito), a gym and large gardens.

Neither the park nor the hotel publishes pool temperatures, so we have not given one. Expect warm to hot pools, with the hotel’s large pools kept hot around the clock.

Day park or hotel?

The choice comes down to what kind of day you want.

Pick the day park if you are travelling with children, want slides as well as warm water, or are on a budget. A family of four can get in for a fraction of the price of a hotel night, bring a picnic and stay until closing at 6pm. The trade-off is noise and crowds on weekends, and the thermal pools are shallow, so they are more for sitting and splashing than for a long, deep soak.

Pick the hotel if the hot water is the point. The two large pools are kept hot all the time, you can soak after dark or before breakfast when the day crowds are gone, and the temazcal and spa are on hand. It also makes sense as an overnight stop near the airport. Check what is included with your room rate when you book.

Getting there

Comanjilla sits north of the León-Silao highway, in the Ojo Caliente and Comanjilla area of Silao municipality.

• From León: about 29 km (18 miles), or 40 minutes by car, according to ADN40. Head southeast toward Silao and follow signs for Comanjilla.
• From Silao or the Bajío airport (BJX): both are close by, so the hotel works for a first or last night in the region.
• From Guanajuato city: drive down to Silao, then follow the highway toward León and the Comanjilla turn-off.

There is a large parking area at the hotel, with 24-hour security according to the operator. A car or taxi is the practical way to get here.

When to go

The day park opens every day from 10am to 6pm, according to a 2026 post from the park reported by ADN40. The hotel pools are open to guests throughout their stay.

November to February brings cool, dry mornings when the hot water feels best. Spring (March to May) is hot and dry in the Bajío, and the slides become the main attraction. The rainy season from about June to September brings afternoon storms.

As with every balneario in Mexico, weekends, Semana Santa, Christmas and long weekends are busy with families from León, Silao and Guanajuato. Weekdays are calmer.

Prices and booking

• Day park: MX$150 adults, MX$80 children, free under 90 cm (ADN40, July 2026). These figures come from the park’s own social media posts, so confirm before you go.
• Contact for the day park: +52 472 107 4303, or [email protected].
• Hotel: rooms listed from MX$1,520 a night for a dog-friendly room with two beds, and from MX$2,610 for a junior suite (Hoteles Misión, 2026). Guests use the thermal pools as part of their stay. Reservations go through Hoteles Misión on 55 9160 1680.

There is no detailed rulebook online. Bring a swimsuit, sandals and a towel, keep glass out of the pool areas, and ask at the gate about alcohol and pets.

Where to stay nearby

• Hotel Misión Comanjilla, on site, is the obvious choice if you want the hot pools in the evening or early morning. It has dog-friendly rooms.
• León, about 40 minutes away, has the widest choice of hotels in the region.
• Silao and Guanajuato city are also close, and Guanajuato’s historic centre makes a good second base.

Safety notes

• Hot water and steam: the source water here comes from an active fault and the hotel’s temazcal sits over boiling water. Stay in the marked pools and keep children away from any vents, channels or pipes.
• Temazcal heat: sweat lodges get very hot. Keep sessions short, drink water and leave if you feel faint. Skip it if you have heart problems or are pregnant.
• Children: the shallow thermal pools suit small children, but the wave pool does not. Keep them within reach.
• Travel advice: Canada’s travel advisory for Mexico (updated October 19, 2026) says to avoid non-essential travel in the parts of Guanajuato south of and including highways 43D and 45D. Comanjilla sits north of the León-Silao highway, outside that zone, but routes from the south of the state cross it. Check the current advice and plan to drive in daylight; Canada also recommends avoiding road travel after dark anywhere in Mexico.

Nearby stops worth adding

The hotel points guests to the Parque Metropolitano de León, a few minutes away, and the Plazuelas archaeological zone, under an hour’s drive, a pre-Hispanic ceremonial site. Guanajuato city, with its tunnels, alleys and colonial centre, is an easy day trip.