Not counting the adventure that is driving a 4-cylinder, stick-shift Hyundai Tucson with 5 passengers and luggage on the narrow, often unpaved roads of Costa Rica, while dodging local moped riders with a death wish, the most adrenalin packed thing we did in Costa was a canopy zip line tour. A first for both of us. The views were amazing - the Arenal volcano, a beautiful lake, a lush forest - and almost picturesque enough to shake off the nerves from jumping off each platform. Almost.
A little video that our tour guide shot: