Tourists can swim with them and their sting is virtually harmless.
But life here hands in delicate balance. Unusually warm water temperatures in 1999 nearly wiped out the entire population.
Scientists fear the devastating impact global warming would have on Palau's delicate ecosystem.
"If it does happen again, the number of jellyfish will decline," Gerda Ucharm with the Coral Reef Research Institute said.
For the Pacific islands, even the slightest change in the environment is felt. But the cause remains uncertain.
Some scientists are cautious about making the connection to climate change, which calls for a long-term view that many studies can't yet provide. But still the changes persist.
In the Southern Island of Peliliu, residents have noticed an alarming trend of ocean water contaminating their taro fields and ruining them, threatening their food security. Read the full report here.
Source: KCTV 5.
