Ecuador is a country of lovely landscapes, so nature definitely a good reson to visit Ecuador.
Poland has lots of forest,
however, these days, forest may not be treated well… 🙁
In Thailand, especially in Thai mountains, you’ll find some nice waterfalls.
I remember a long time ago, my dentist said that one of his friends considers mountains in Thailand as the most beautiful mountains in the world. Of course, it’s a very subjective opinion. I’m in love with Patagonia, but the point is, Thailand is not only country with islands and beaches; there are also mountains with the highest peak of 2,565 m above sea level.