Costa Rica
There is a lovely waterfall near Rara Avis Lodge. There is another waterfall a day's hike away - Vencejo Falls. All the trails in the area are fascinating. Naturalists come on the hikes to spot wildlife along the way. Without a guide on Costa Rican trails, you miss most of the interesting plants and animals. Guides are licensed and take up to 5 years of instruction at the college level. Many specialize in birds or flowers, and most speak several languages.