The dramatic Hollyford Track starts in the midst of lowland forest, crossing mountain streams and passing pretty waterfalls as it follows the broad Hollyford River valley all the way to the sea at Martins Bay.

BBC: New Zealand��s tracks less travelled

Costa Rica is an adventurer's paradise -- where else can you rappel waterfalls, hike volcanoes, zip-line through the forest and surf, all within miles of each other?

CNN: Costa Rica's oasis