Where in the World to Find Sloths, Leopard Seals, Orangutans, and Narwhals

The safest viewing is from a Zodiac, though a few companies like Oceanwide Expeditions offer diving excursions. 11 nights from $7,950 per person.

Emperor penguins, orcas, and minke whales.

These 840-pound super-predators are the only seals known to eat warm-blooded animals, including penguins—and sometimes other seals.

Aqua Expeditions sails Peru’s Pacaya-Samiria National Reserve, accessible only from the water. Three nights from $3,645 per person.

Pink dolphins, capybaras, Amazon manatees, and squirrel monkeys.

It can take up to a month or more for sloths to digest one meal. Good thing they burn only 110 calories a day—the lowest rate of any mammal.

Pandaw offers trips down the Kapuas River system that include a stop at an orangutan sanctuary in Sintang. Seven nights from $2,326 per person.

Proboscis monkeys, crocodiles, and Storm’s storks.

This endangered primate, the only great ape in Asia, is the only one in the world to spend most of its life in trees.

How to Spot One

Lindblad Expeditions passengers have reported seeing narwhals off Baffin Island. 23 nights from $23,100 per person.

Polar bears, walrus, ringed seals, and belugas.

That horn is actually a tooth, and can grow up to 10 feet long.

Inca sails regularly and will bring along naturalist Linda Cayot, an alumna of the Charles Darwin Research Station. 11 nights from $8,395 per person.

Blue-footed boobies, marine iguanas, and Galápagos finches.

Researchers are breeding hybrid giant Pinta and Floreana tortoises to try to resurrect the two extinct species.

• By Travel + Leisure
• By Travel + Leisure Staff