Amazon River animals along the river
The river and its banks hold dolphins, otters, manatees, caimans, fish and herons. A species that lives in a protected area is not a promise of a sighting on every trip. Treat every sighting as a bonus and never as part of the price.
Most wildlife viewing happens from a small boat with a guide, on day trips or inside Amazon river tours that last several days. Night boat trips use lamps to scan the banks for caimans and other nocturnal animals. That is watching, not permission to catch or handle anything.
Our pick: a wildlife-friendly trip
Watching from the boat with a local guide, with no feeding or handling.
Hand-picked tours, booked through GetYourGuide. Prices are indicative starting prices in US dollars (as of October 2026). Tap a tour for live availability and the current price in your currency.
Amazon river wildlife tours
Boat trips, night excursions and lodge stays on the Amazon and Rio Negro, with live prices and availability.
Amazon River animals by place
Which species live where.
| Place | Animals | Notes |
|---|---|---|
| Anavilhanas, near Manaus | Giant otter, Amazonian manatee, boto | The species live there, but a sighting is not guaranteed |
| Pacaya-Samiria, Peru | Manatee, pink dolphin, river otter, black and light-coloured caimans, paiche, herons, cormorants | Visits run through authorized operators |
| Puerto Nariño, near Leticia | Pink river dolphins | Occurrence only, no sighting rate |
For most visitors, Pacaya-Samiria with an authorized operator has the widest list of species, and Anavilhanas fits a trip based in Manaus. Read the Pacaya-Samiria guide and the Manaus guide to plan either one.
Pink river dolphins, giant otters and caimans
The animals most trips look for.
River dolphins
The boto (Inia geoffrensis) and the tucuxi (Sotalia fluviatilis) are both listed as Endangered. Watching is one thing, feeding or swimming with them is another, and we do not recommend it. Bycatch and pollution are named among the threats. See the river dolphin guide.
Giant otters
The giant otter (Pteronura brasiliensis) is documented in the Anavilhanas archipelago. Keep your distance and follow your guide's lead on the water.
Manatees
The Amazonian manatee (Trichechus inunguis) lives in Anavilhanas and Pacaya-Samiria. Do not plan around feeding or touching one.
Caimans
Black and light-coloured caimans live in Pacaya-Samiria. Photo stops with a caught caiman are not a normal or acceptable activity, and we do not suggest them.
Amazon River snakes and anacondas
Snakes are not a reason to book a trip. No sighting can be promised, and no tour should be built around finding one. Local guides decide where to walk and which banks to approach, so follow their instructions. Do not go looking for snakes on your own.
Fish in the Amazon River
The paiche, also called pirarucu or arapaima, one of the largest freshwater fish, lives in Pacaya-Samiria. It is not an animal to touch on an excursion. Piranhas are the fish most visitors ask about, and our piranha fishing guide covers the licence and the rules.
Swimming in the Amazon River
A health note, not a ban.
Schistosomiasis
German travel advice for Brazil (as of October 2026) recommends against bathing in inland waters because of schistosomiasis. Transmission can also occur in flowing water. It is a health note and not a legal ban on swimming along the Amazon.
Stingrays
Injuries from stingrays are documented, most often in northern Brazil, and feet are hit most. The risk is real. How often it happens to visitors is not known.
No general safe spot
There is no generally safe swimming place along the main river. Ask your guide or lodge about a specific spot, and about current and caiman risks there.
Watching animals responsibly
Simple rules that apply on every trip.
Watch from the boat, keep your distance and never feed or touch wildlife. A rescue centre at Padre Cocha near Iquitos forbids direct contact with its animals, and any tour that offers a cuddle or a selfie with a wild animal is a reason to choose another one. Low water or heat can hurt animals too. In the drought and heat of 2023, 209 river dolphins died in Lago Tefé.
Pick the season with care. Our best time to visit page explains high and low water, and the where to stay page covers lodges, ships and hotels.
Amazon River animals: frequently asked questions
What animals live in the Amazon River?
The river is home to river dolphins, giant otters, manatees, caimans, the paiche and many birds such as herons and cormorants. Which ones you see depends on the place, the season and luck.
Are there anacondas in the Amazon River?
Snakes live in the basin, but no tour can promise a sighting and you should not plan around one. Follow your guide's rules on every bank and trail.
Can you swim in the Amazon River?
German travel advice for Brazil recommends against bathing in inland waters because of schistosomiasis. It is a health note, not a general legal ban. Ask your guide about a specific spot.
Can I touch or feed river animals?
No. Treat feeding, touching and swimming with wild animals as something to avoid. Watching from the boat is enough.
Where can I see pink dolphins?
They live in Anavilhanas near Manaus, Pacaya-Samiria and Puerto Nariño near Leticia. That is not a sighting rate, so plan for the experience of the river as a whole.
Is this an official Amazon River site?
No. This is an independent travel guide, not connected to any authority, reserve or tour operator.