Rob Tilley / Travelers Palm (Ravenala madagascariensis) leaf detail. Maui, Hawaii, February.

Kevin Schafer / Zodiac takes travelers along glacier front, Monaco Glacier, Liefdefjorden, Svalbard, Norway

Ingo Arndt / Travelers Palm (Ravenala madagascariensis) frond, Christmas Island, Indian Ocean, Territory of Australia

Ingo Arndt / Travelers Palm (Ravenala madagascariensis), Christmas Island, Indian Ocean, Territory of Australia

Steven Kazlowski / Adventure travelers observing humpback whale blowing (Megaptera novaeangliae) in waters off the western Antarctic Peninsula, Southern Ocean

Norbert Wu / Yellow Labrador Retriever (Canis familiaris) mix, shredding newspaper, mellow dogs, good travelers and swimmers