We thoroughly enjoyed our stay at Arenal Paraiso! Our lodges were comfortable, and are built on a hillside facing Arenal volcano. The warm pools were relaxing after a long day, and the grounds harbor dozens of species of birds! One morning I found 10 species before breakfast. In addition there are many butterflies, reptiles, and amphibians there. We saw a huge iguana in a tree right near the reception area. I wish we could have stayed longer.

Every cabin has a fantastic view of the Arenal Volcano! You wake up to the sound of birds. It is a beautiful location with lots of foliage. They have 4 hot tubs that
have water pumped from the hot
springs and a nice pool.
The beds are very comfortable. Breakfast had an omelette making station, scrambled eggs, meat, cheese, pastries, bread, juice, yogurt and coffee. I saw hummingbirds while eating breakfast.
It is close to the city of La Fortuna.
We arrived in the afternoon in pouring rain. They have a shuttle to get you to the restaurant.
We were so lucky to get a great view of the volcano, which I guess you usually only see during the rainy season. Don't be afraid to come at that time. Hopefully it will only rain in the evening like it did for us.
Their Wi-fi was good.