There’s something special about Arenal, the “adventure capital of Costa Rica.” Or, more accurately, many somethings special: It’s the iconic volcano, with its near-perfect cone. It’s the town’s bubbling hot springs – natural spas of thermal waters and medicinal mud. It’s the waterfalls, the caves, the forests and the rivers. It’s the canopy tours and waterfall rappelling and whitewater rafting and nature hiking. Arenal’s appeal is undeniable.