Things to Do in Arenal, Costa Rica
I first drove toward Arenal at dusk, and the volcano appeared out of nowhere. There it was, a perfect cone rising out of the green, clouds peeling off its neck. I remember glancing in the rearview mirror again and again, not quite believing it was real. That moment set the tone for my whole trip. Arenal is not a place you tick off a list. It pulls you in. If you are planning a visit, here are the things I would do again without hesitating, along with the honest notes I wish someone had given me.
Hike the trails inside Arenal Volcano National Park
Start your time here with the park itself. The main trails are easy to walk and cut through young forest that has regrown since the big eruption in 1968, which buried this whole area in ash and lava. On the sendero colada trail you walk right across old lava flows, and the way the forest has reclaimed that black rock is fascinating. Keep going to the viewpoint near the lake for one of the clearest looks at the cone. I went in the morning before the clouds rolled in, and I recommend you do the same.
Soak in the hot springs after a long day
Volcanic heat powers dozens of hot spring resorts around the base of the mountain. I spent one evening at Tabacon, where the thermal pools step down toward the river and steam rises off the water. It felt indulgent and completely earned after a day of hiking. If you want something more low key and cheaper, the free natural pools beside the river at the edge of La Fortuna are a lovely option, though they can be busy. Bring a towel and plan to stay until the stars come out.
Swim beneath La Fortuna waterfall
The waterfall just outside town drops about 70 meters into a cold, clear pool. The walk down is a set of long staircases, around 500 steps by rough count, and the climb back up is the real test. That said, the reward is worth every step. Stand in the spray, swim if you are brave about cold water, and let a friend snap the classic shot of you small against the falls. Go early to beat the tour groups in the afternoon.
Cross the hanging bridges in the rainforest canopy
Mistico Park strings suspension bridges through the treetops. Walking between them, I spotted monkeys and toucans from above instead of just hearing them. Some bridges sway more than I expected, adding a little adrenaline. Give yourself a couple of hours.
Zipline across the canyon
Arenal has some of the longest ziplines in the country, and one of them crosses the canyon that feeds the waterfall. I am not great with heights, and I still loved it. The guides are smooth and the safety gear is solid, so even a nervous person can enjoy the rush. Sky Adventures and Extremo both run solid courses. Pick the one that fits your schedule and just go.
Spot sloths on a guided night walk
Sloths move so slowly you can walk right past them. A good guide matters. On a night tour through the fields around town I saw a three toed sloth reaching for a leaf, a family of sleeping birds, and a snake the guide moved off the path. Book a small group so you actually see things instead of shuffling behind a crowd.
Kayak on Lake Arenal
Lake Arenal hugs the western edge of the volcano, and paddling out on a calm morning is quiet in a way that surprised me. No motor, no music, just the sound of the paddle and the volcano across the water. Rent a kayak in the morning before wind picks up, which it reliably does by afternoon. If you are lucky the surface goes glassy and the mountain reflects perfectly.
Walk the town of La Fortuna
Base yourself here and you will find a friendly little town full of sodas, which is the local word for small family restaurants. I ate gallo pinto with eggs most mornings and fresh fruit that made the hotel breakfast feel like a feast. Walk the main drag in the evening, grab a coffee, and ask the locals what the volcano looked like from their window that day.
Visit the volunteer rescue center for sloths
Proyecto Asis lets you visit animals that local rangers are rehabilitating, including sloths and monkeys that cannot easily return to the wild. It is educational rather than a petting zoo, and the guides explain why keeping wildlife as pets is so hard on the animals. I left with a much better understanding of conservation in Costa Rica.
Chase the waterfalls trail at dawn
About half an hour north of town, the waterfalls along the Rio Fortuna route are quieter than the big one. Follow the muddy path early, when the light comes through the leaves and the sound of water is the only thing around. Bring good shoes. The trail gets slick, and the reward for the effort is a string of small falls you might have all to yourself.
Ride through the countryside on horseback
An afternoon ride from a local rancho takes you through pastures, along riverbanks, and up slopes with views back toward the volcano. My horse knew the route better than I did, which was a good thing. It is a relaxed way to see the land and the working farms around Arenal without breaking a sweat.
Catch the volcano on a clear night
On my last evening I found a deck facing the mountain and simply watched it go grey against the sunset. No activities, no crowds. That quiet hour was the moment I loved most. Arenal rewards the patient traveler, and its best memory might be the simplest one.
