Arenal Nayara, La Fortuna
This collection of colourful casitas gazes up to the crater of Arenal. The country's most-active volcano is surrounded by a national park that's home to 850 species of birds, as well as monkeys and jaguars, making the lodge a prime spot for wildlife fans. The decor reflects the tropical surroundings, with brightly painted walls and furnishings, while the bungalows come with vaulted bamboo roofs, outdoor monsoon showers and balconies with hammocks and Jacuzzis.
Arenal Nayara, La Fortuna, Arenal NP (00 506 2479 1600; arenalnayara.com). Doubles start at US$277 (£185), including breakfast.