The Restaurant at Arenal Observatory Lodge & Trails
Arenal Observatory Lodge & Spa's restaurant is mentioned by professional travelers. Of the 4 reviews tracked on TripExpert, 2 referenced the restaurant, including Lonely Planet and Travel + Leisure.
Arenal Observatory Lodge & Trails 
Lonely Planet
Travel + Leisure
Lonely Planet "There’s a decent international restaurant on the grounds (as there’s obviously nowhere else to eat in the area)"
Travel + Leisure "You need not be a guest to make a day visit or dine at the restaurant while keeping an eye out the window on the smoldering mountain"
