Fergusson Island, Papua New Guinea Cruise Port

• If you want to get close to an inactive volcano, take a hike from Warluma to the large crater of Mt. Lamanai. You'll not only get an excellent view of the island below, but may also encounter some birds and critters, such as parrots or the rare Fergusson Island striped possum.
   
• One of Fergusson's most popular draws is the collection of active thermal springs at Deidei, near Salamo on the eastern side of the island. Here you'll find prehistoric steam vents and salt deposits, and see how locals still used the boiling pools to prepare their meals.
   
• Birdwatchers looking for rare species may spot the Goldie's bird-of-paradise and the curl-crested manucode, both of which are unique to PNG. Many cruise lines offer shore excursions specifically for birders, so don't forget the binoculars.
   
• You'll encounter plenty of marine life if diving and snorkeling, along with fantastic black coral. Below, there are barracuda and grey sharks, as well as dartfish, eels, sweetlips, and many other types of fish. If you'd rather stay on the beach, you might spot dolphins or whales from shore.