Arenal Observatory Lodge & Spa was originally built in 1987 as a scientific research station for the world-famous Smithsonian Institution. After Arenal Volcano’s sudden and dramatic explosion into life in 1968, Smithsonian Institution scientists began frequenting the area and would camp on the family’s land because of its strategic location. They built cabins and a small hotel to take care of them and expanded over the years.
Enjoy delicious meals in the lodge restaurant with floor-to-ceiling windows for gazing at the Arenal Volcano and Lake Arenal, and a huge observation deck just outside. The Observatory Spa will help you relax with massages and other body therapies.
Arenal Observatory Lodge & Spa is a sustainable eco-lodge with a rating of Three Leaves in the Certification for Sustainable Tourism Program (CST) by the Costa Rican Tourism Board. Additionally, Arenal Observatory Lodge & Spa consistently wins TripAdvisor’s Certificate of Excellence award every year and is a proud member of its Green Leaders program.
Five rooms are fully equipped for disabled travelers, with rooms, bathrooms, hallways, parking areas, and even the new swimming pool designed accordingly.
La Casona’s five rooms are ideal for groups or individual budget travelers. It is located 500 meters (0.3 miles) from the main hotel building down a moderate slope.
Spacious and comfortable Standard Rooms at Arenal Observatory Lodge & Spa all feature two queen-sized beds, a private bathroom, a coffeemaker, a room safe, sitting chairs and a writing table.
Very spacious Smithsonian Rooms all showcase huge picture windows which frame the majestic Arenal Volcano, Lake Arenal or the beautiful rainforest and gardens. Five Smithsonian Rooms are outfitted for wheelchair access.
Our two Junior Suites are the most spacious rooms with grand views of Arenal Volcano and Lake Arenal, and a large private terrace.