Costa Rica
Costa Rica is located at an intersection of continents and oceans. Surrounded by Carribean, North America, Pacific Ocean and South America, provides a large diversity of experiences in a single little country. You can find as much as 14 volcanos there (some of the still active), the highest being Irazú, as well as rainforest, rivers with tremendous waterfalls and a large lake of Arenal. The climate is tropical.
The country has several national parks, with most famous Corcovado National Park on the south, renowned for vast diversity of wildlife (namely monkeys, tapirs, big cats) and plants. Do not hesitate and book a trip as soon as possible!