Arenal Hanging Bridges Hiking Tour. Explore a protected tropical rainforest on a 4-hour hanging bridges tour from La Fortuna, and hike a 2-mile (3.1-km) circuit that crosses a series of 15 bridges with extraordinary views of the jungle canopy. Watch for brilliant birds, monkeys, boars and jewel-toned frogs as you follow your guide through the forest, and listen to the sounds of tropical birdsongs and trilling insects. Experience Costa Rica’s rich diversity and lush habitat in terrain that abuts the Arenal volcano, and discover a remarkable world hidden in thick rainforest canopy. Book and Save 15%! Arenal Hanging Bridges Hiking Tour.