COVER: © Ingrid Visser / ​ SeaPics.com; page 2: Australia: Photo by Jonathan Wood / ​ Getty Images; Tuvalu: Gary Braasch / ​ ZUMA Press
KAANEPILT: © Ingrid Visser / SeaPics.com; lk 2: Austraalia: Photo by Jonathan Wood / Getty Images; Tuvalu: Gary Braasch / ZUMA Press