Pros: The set up of these springs is fabulous. From the moment you pull up to the unmarked wooden gate (set across the street from the more “glamorized” Baldi Hot Springs) you know you are in for a secluded treat. The fact that Eco-Termales limits the amount of guests into their elegant springs is a major bonus.

When we arrived for our late evening reservation, we were happy to find free lockers for our belongings and towels to use. We were able to enjoy the springs right away! We never felt crowded and could find many quiet areas to enjoy the hot springs. The pools and waterfalls were plentiful, and everything in the area understated yet elegant. The bars offered tasty tropical beverages and were served at reasonable prices (we paid $4 USD for a large pina colada). We did stay for the late dinner seating and were served typical Tico fare in earthenware pots.

Cons: Can’t really think of any!

We highly recommend these springs to anyone!

We went to Eco Thermales as part of a day long tour, but did not eat dinner there.
I think word must be getting around about this place because it was fully booked both nights we were in La Fortuna. We were told they limit their numbers to 100 people at a time.
EcoThermales was right across the street from our hotel (hotel silencio del campo), and right next door to Baldi. There is no big sign revealing its location, and there is a gate at the entrance.
At the end of the driveway was a nice reception area where you get a towel each and a key for a locker. The change rooms were clean with showers and washrooms.
A short walk past the dining area and you come to the pools. There are three hot pools set up by increasing temperature. The pools all have smooth bottoms, so water shoes are optional. There is nothing too fancy about the set up, but we really appreciated the small, quiet, cozy atmosphere. The bar is located right next to the pools and works on the honor system (so you pay your bar bill at the front desk, so remember how much you had).
I can't comment on the food because we unfortunately had dinner elsewhere.
Having gone to the other hot springs, I really enjoyed ecothermales. A relaxing and laid back atmosphere and an honor bar system with great drinks made for a great experience. If I went back to La Fortuna, this is the only hot springs I would go to.

My husband and I loved this place. It was so relaxing and intimate. We also enjoyed the dinner :)

I had trouble making reservations here by finally found a website called arenal.net to make it. That was the only problem we had. This family owned hot springs is worlds apart from the others in the area and I am so happy we picked this one. The food was great, the bar honor system, the showers and the absence of people in general. You will love it, I would recommend this place to ANYONE.