Skip Manuel Antonio’s tourist crowds for these humid, mud-soaked trails. You definitely need legit hiking boots because the bridge slats get slippery in the morning mist. Shell out for the $90 guided tour; otherwise, you’ll just stare at empty leaves instead of spotting the rare glass frogs and vipers. Aim for a 7:30 AM start to beat the midday heat. Give yourself three hours for the river crossings and hanging bridges. It’s sweaty, intense, and worth it.
