Reviewed · THERMAL SPRINGS & NATURAL POOLS
Montanejos: Magical Night Swim Under the Stars
Montanejos turns a simple swim into a full-on night adventure, lit from below and framed by canyon stops before the stars come out. I like the idea of a starlit thermal river float where the water stays warm year-round, not a cold, miserable nighttime gimmick. I also like that you go with a tiny group, up to 8 people, so the evening feels calm instead of crowded.
One thing to consider: this is a night water tour that requires minimal swimming skills, and it is not suitable for non-swimmers or wheelchair users.
Key moments you’ll remember
- Thermal water in the winter: the river runs about 19 to 21°C (66 to 69.8°F), year-round
- Sunset at Arenoso Dam: warm sky colors over the water before the swim
- Fuente de los Baños under the stars: illuminated river time with underwater lights
- Eerie soundscape in the canyon: the Chillapájaros echoes in the Valley of the Screaming Birds
- Small-group pacing: a tight tour size, max 8 people, guided end-to-end
- Photos included: you focus on floating, not filming
Montanejos at night: why this thermal swim feels special
There are plenty of tours that promise nature. This one actually builds it in layers. You start in late afternoon with viewpoints and riverside moments, then shift to a warm-water swim as darkness falls. That pacing matters, because you’re not just showing up for the water. You’re watching the region change right in front of you.
The biggest reason I’d put this on your short list is the thermal factor. You get the comfort of warm water even when it’s winter outside. That means you can enjoy the glow, the quiet, and the star view without rushing to get out because your hands and feet are going numb.
The second reason is the small-group setup. With a max group size of 8, you tend to move through each stop without feeling like you’re part of a busload. The evening stays personal, and the guide can keep an eye on everyone during the water time.
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Getting from Valencia to Montanejos without hassle

Your day is about 6 hours total, with a mix of scenic driving and short stops. You meet right next to the Serranos Towers in Valencia, where the guide will be easy to spot, waving around with a red floating noodle. The tour description also lists a convenient Valencia pickup at Plaza del Ayuntamiento, so expect a straightforward handoff in the city rather than a complicated meeting plan.
You’ll ride to Montanejos in comfortable transport, then spend the evening moving through that area step by step. Because it’s a timed experience, it helps to be on time and ready to go. Night plans only work when the whole group is ready together.
The late afternoon photo stop that sets the tone
Before Montanejos, you have a secret stop that’s part photo break, part scenic sightseeing. It’s short, around 40 minutes, but that timing is smart. You’re not cold yet, you’re not rushing, and you can settle into the idea that this is a slow-burn evening.
Expect viewpoints and photo time on the way, so bring your camera or phone and keep it accessible. If you’re the kind of person who likes to remember the journey, not just the final moment, this stop helps you feel like you’re arriving properly, not teleporting.
Secluded waterfall and the Arenoso Dam sunset
The itinerary keeps pulling the setting card at the right moments. In Montanejos, you get another 40-minute pause for a photo stop and sightseeing, then later you head toward the dam for the sunset.
The star stop in this part of the evening is Arenoso Dam at sunset. You’ll watch the sky shift into orange and pink tones while you look out over the water. This isn’t just pretty. Sunset gives you contrast for what comes next, because once it’s darker, the river illumination will feel even more dramatic.
Earlier, you also visit a secluded waterfall. You’re meant to start quietly, letting the sound of water and the natural setting reset your brain. It’s a nice on-ramp to a night swim, especially if you’re coming from the city where noise never truly stops.
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The Valley of the Screaming Birds: a spooky, real soundscape
Then comes the Valley of the Screaming Birds, with an added nature detail that you can’t fake. As you move through the canyon setting, the calls of the Chillapájaros echo around you. It’s atmospheric in a slightly eerie way, the kind of sound that makes you pay attention.
This stop is more than a weird name. It’s a reminder that you’re in a living place, not a staged attraction. Bring your curiosity, not just your swimsuit bag.
One practical note: because this is an echo-heavy area, you may notice that sound carries strangely. If you’re someone who gets stressed by sudden noise at night, take it easy at this stage and let the guide set the pace.
Fuente de los Baños: how the starlit swim actually works
The highlight is the night swim at Fuente de los Baños in Montanejos. You’ll spend about 75 minutes here, including a guided introduction and the swim time itself.
What makes this different from a regular nighttime water stop is the illumination system. The guide provides lighting gear, including color-coded blinking lights and underwater flashlights. That lighting changes everything. It helps you stay oriented, makes the water feel visible but not harsh, and lets you focus on the sensation of floating rather than fumbling in the dark.
The water stays warm, around 19 to 21°C year-round, thanks to the thermal nature of this river. That warmth is what lets you enjoy the stars instead of just enduring the swim.
You’ll float in the illuminated thermal water beneath a sky full of stars, and it can feel otherworldly, in the best way. The guide is also a life guard, and that matters because the experience is designed for comfort and control, not bravado.
Marine life and wildlife viewing while you’re on the water
You’re not just swimming through dark water. You also get time for marine life viewing and wildlife viewing as part of the guided experience at Fuente de los Baños.
Even if you don’t consider yourself a wildlife person, this is worth paying attention to. The combination of thermal water, gentle movement, and low light can make the details feel closer. Your job is simple: stay relaxed, follow the guide’s cues, and look when they ask you to.
If you tend to get distracted or restless in water, lean into the guided aspect. The point is to let the night slow you down.
What you do after the swim, food-wise
After you swim, you meet for a break that includes beer, wine, dessert, and regional snacks, followed by a local dinner. This is part of the total 6-hour schedule and takes about 1 hour in the itinerary timing.
One key detail: food and drinks are listed as not included. So even though there’s a meal stop in the evening plan, you should expect to pay for what you order. The good news is that this meal is part of the region’s everyday rhythm. You’re not just transported in and out like a drive-by.
Safety and gear: what the guide provides (and what you should plan)
This tour is built around comfort and safety. Your guide, Kiu (also listed as Kiumars), supports the experience throughout. He provides watershoes and individual lighting gear, and the tour is explicitly guided with safety in mind.
Bring what matters, because the rest is handled:
- You should pack a passport or ID card.
- Bring change of clothes, because you’ll be in water and you’ll want dry clothes after.
- You will need minimal swimming skills. The guide always helps, but the activity is still water-based.
Not for everyone: it’s not suitable for wheelchair users, and it’s not suitable for non-swimmers. If you’re unsure about your comfort level in open water at night, be honest with yourself. Warm water helps, but this still counts as a night water tour.
Price and value: is $147 worth it?
At $147 per person for a 6-hour experience, you’re paying for a bundle of things that are hard to replicate on your own at night. You get:
- Transportation to and from Montanejos
- Watershoes and lighting gear
- Photos
- A guided route through the sunset and canyon stops
- A warm-water swim experience with professional oversight
You’re not paying only for the swim time. You’re also paying for the timing, the sequence, and the gear that makes night floating safe and enjoyable. If you tried to do this independently, you’d still need a way to handle the night orientation, the right swim setup, and a reliable plan for when and where to be.
The only potential value pinch is food. Food and drinks are listed as not included, so your final spend could rise depending on what you order during the dinner stop.
For the right traveler, though, it’s strong value because you’re buying a complete evening experience, not just a ticket to hop in water.
Who this Montanejos night swim fits best
You’ll probably love this if:
- You want a calm, nature-focused evening without big crowds, thanks to the small-group size up to 8
- You like nighttime experiences that feel guided and safe, not chaotic
- You’re excited by starlight views with thermal comfort, not a gimmick in cold water
- You want photos handled for you, so you can enjoy the moment
You should pass if you:
- Cannot swim, even with help
- Need wheelchair access
- Hate being in or near water at night, even if it’s warm and guided
It also works year-round, including winter, which is a major advantage if you’re traveling when most outdoor experiences feel limited.
Should you book this starlit Montanejos swim?
Yes, if you want an evening that mixes scenery, a surreal night swim, and a small-group feel, this is an easy choice. The thermal water and the guided lighting setup are the big wins, and they make the whole experience feel intentional, not improvised.
I’d especially book it if your trip timing leaves you craving something different from museums and city sightseeing. Montanejos gives you a sensory reset: sound in the canyon, sunset color over the dam, then the calm of floating under stars.
Before you go, double-check your swim comfort and pack your change of clothes. If that box is checked, you’ll likely finish the night with that rare travel feeling, when you’re tired in a good way and the images stay in your mind for longer than a selfie.
FAQ
How long is the Montanejos magical night swim experience?
The experience lasts about 6 hours.
Where do I meet for the tour in Valencia?
Meet right next to the Serranos Towers. The guide will be easy to spot, waving a red floating noodle.
What water temperature should I expect in Fuente de los Baños?
The thermal waters stay between 19 to 21°C, which is about 66.2 to 69.8°F, so the swim can be done throughout the year.
Do I need to be an experienced swimmer?
Minimal swimming skills are required. The guide is also a life guard and always helps during the activity.
What gear is provided for the night swim?
The tour includes watershoes and individual lighting gear, such as color-coded blinking lights and underwater flashlights. Pictures are also included.
Is food and drinks included in the price?
Food and drinks are listed as not included, even though the schedule includes a meal stop in Montanejos.
What group size and languages are available?
The group is kept small, up to 8 people max. The tour guide speaks English, French, German, Persian, and Spanish.
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