We will be staying in La Fortuna next week for a few days. We want to experience the hanging bridges, hike around the Arenal Volcano, and swim in La Fortuna Waterfall but we do NOT want to hire a guide nor do we want to book a tour. 1) can that be done? 2) where do we need to drive to and park? 3) on our volcano hike, we would love to see some old lava! Any maps, websites, direction, would be GREATLY appreciated!