3. Costa Rica
Costa Rica has been popular with expats for over 30 years due to its easy-going lifestyle and gorgeous ocean-side landscapes. Actually, water lovers of all kinds will thrive in Costa Rica, as it boasts the second largest number of rivers and water bodies anywhere in the world. As you can imagine, a wide range of native fauna comes along with that, including over 300 species of hummingbird!
Costa Rica is a wonderful place for retirees, offering a visa program that welcomes older folks with at least $1,000/month in income. For the working set, you will need a job to settle there. Luckily, Costa Rica has a lot of job opportunities, especially around tourism and teaching English.