The forest around Manuel Antonio does not go to sleep at six in the evening. It changes shift. The animals most visitors photograph during the day — capuchins, squirrel monkeys, agoutis — settle down, and a completely different cast comes out: kinkajous, tree frogs, cat-eyed snakes, owls and spiders that were invisible eight hours earlier. This page is the honest version of what that shift looks like, written by the guides who walk it.

We do not promise species. Nobody can. What we can do is tell you what we see, how often, and what changes the odds — which is the only useful information before you spend an evening on a trail.

What We See on the Manuel Antonio Night Tour

The sightings below are grouped by how often our guides actually find them, not by how good they look on a brochure.

Seen on most nights. Frogs are the backbone of the walk. Masked tree frogs (Smilisca phaeota) and the milk frog are regulars on leaves at eye level, and cane toads (Rhinella marina) sit on the trail edges where insects gather under any light. Tarantulas are reliable too — the trapdoor and tarantula burrows along the trail are known spots, and a guide who works the same trails every week knows which holes are occupied. Whip spiders (amblypygids) press flat against tree trunks and are one of the most photographed animals of the night, once people get over the first reaction. Katydids, stick insects and walking sticks are everywhere once a light finds them.

Seen often, but not guaranteed. The two-toed sloth (Choloepus hoffmanni) is a night animal, and the night tour is genuinely a better chance at it than a daytime walk, because it is awake and moving instead of curled into a ball thirty metres up. Kinkajous (Potos flavus) give themselves away by sound first — branches moving and fruit dropping — and then by eyeshine. Common opossums cross the trail. Cat-eyed snakes (Leptodeira septentrionalis) hunt frogs around water, so where the frogs are good, the snake odds go up with them.

The real luck of the night. A red-eyed tree frog (Agalychnis callidryas) with its eyes open. A common potoo (Nyctibius griseus) sitting motionless on a broken stump. A mottled owl (Ciccaba virgata) or a black-and-white owl calling and then showing. A fer-de-lance (Bothrops asper) coiled off-trail, which your guide will show you from a safe distance and then move you along. Olingos. These are the nights people talk about for years, and they are not every night.

Conditions That Change What You See

Three things move the odds more than anything else.

Rain and humidity. A humid evening, especially one that follows an afternoon shower, is the best frog night you will get. The dry, breezy nights of February and March are quieter. This is why the green and shoulder seasons are underrated for night walks: wet is good here.

The moon. A bright full moon makes some mammals more cautious and spreads light that competes with the guide’s torch. Darker nights concentrate everything into the beam.

How many lights are on the trail. This is the one most people never think about. A private group of four moving slowly finds more than a group of eighteen, because animals react to noise and to a wall of light. Our night tour runs as a private walk for your party only, with specialised lighting instead of a phone flashlight — and that single difference is worth more than any species list.

What about at night — is it really worth a second tour?

Yes, if you want to see a different forest rather than the same one in the dark. The overlap between a day tour and a night tour in Manuel Antonio is small. Day is monkeys, sloths asleep, iguanas, birds and crabs; night is frogs, snakes, kinkajous, opossums, spiders and owls. People who do both usually describe them as two separate trips, not one repeated.

How is the night tour different from the national park tour?

The Manuel Antonio National Park tour is a morning walk built around the park’s main trails and its daytime residents, with the highest density of monkeys and sloths you will find anywhere near Quepos. The night tour is a slower, shorter, much more focused walk — less distance covered, far more time standing still while a guide works a single tree. The entrance is included in the night tour, and it is run as a private departure, so the pace is set by your group and not by a schedule.

Is the night tour safe, and what about snakes?

The honest answer: the snakes are the reason you hire a certified guide, not a reason to skip the walk. Manuel Antonio does have venomous species — the fer-de-lance above all — and they are active at night. A guide who works these trails knows where to put your feet, spots the animal before you do, and keeps the group at a distance that is safe for both sides. Closed shoes, long trousers and walking behind the guide are the whole protocol. In practice, the animal that most often startles people is a large toad, not a snake.

Can children do the night walk?

Most children over about six do very well on it, and many enjoy it more than the daytime hike, because it is shorter, flatter and there is a torch involved. The limiting factor is bedtime, not difficulty. A child who is already tired at seven in the evening will not enjoy standing quietly in the dark for ninety minutes.

What should I bring?

Closed shoes with grip, long trousers, insect repellent applied before you arrive, and a rain jacket in the green season. Leave the phone torch in your pocket — white phone light blows out the animal’s eyes and ruins the sighting for everyone behind you. Your guide’s lighting is deliberately warm and indirect for that reason. A camera that handles low light will do better than a phone, but most of the best night photos our guests send us were taken on phones, over the guide’s light.

Why a Certified Naturalist Matters More at Night

During the day, a patient visitor will eventually see a monkey troop without help. At night, the same visitor will see leaves. Almost everything on this walk is found by knowing where to look: the exact height frogs sit at, the trunk where the whip spider lives, the fruiting tree the kinkajou has been working all week, the sound a potoo makes before it is ever visible. Our night tours are led by ICT-certified naturalists carrying a Swarovski scope, so that when something is found twenty metres up, the whole group actually sees it instead of taking your word for it.

Jason Solano Zamora, the guide behind Wakoo Tours, has spent years on these trails after dark, and the reason our sighting lists are cautious is exactly that experience: a guide who has walked a hundred nights knows that no two are the same.

Book the Manuel Antonio Night Tour

The night tour runs as a private departure for your group only, with the park entrance, specialised lighting and an ICT-certified naturalist included. Full details and availability are on the Manuel Antonio Wildlife Night Private Tour page.

Travelling in December or January? That is our busiest window of the year and private night departures are the first thing to fill. Reserve your dates here: Book your December 2026 Manuel Antonio tour.

Written by the guiding team at Wakoo Tours, Manuel Antonio, Costa Rica.