Northern Border
- Distance
- 4.14mi
- Elevation +
- 853f
- TrailRank
- 33
Distance: 6.6 Km. Difficulty: Difficult Duration: 3.5 Hours At 6.6 km with a top elevation of 355 meters above sea level, this loop is by far the most challenging in the Osa Biodiversity Center trail system. The beg...