An atoll is an island of coral that partially or completely surrounds a lagoon.
midway atoll is located in the northern pacific ocean
Atolls are typically found in warm tropical and subtropical oceans, particularly in the Pacific and Indian Oceans. They are commonly found in areas with low-lying coral reef islands surrounding a central lagoon. Some well-known atolls include the Maldives, Tuamotu Archipelago, and Marshall Islands.
The Huvadhu Atoll is located in the Indian Ocean about 600 kilometers southwest of Colombo, Sri Lanka.
Gan International Airport (GAN) is located on the island of Gan in Addu Atoll (also known as Seenu Atoll) in the Maldives.
Kwajalein Atoll is about 2100 miles southwest of Hawaii, and 1400 miles east of Guam. It is part of the Marshall Islands.
atoll
Rarotonga
Bikini Bottom is under the Bikini Atoll is the Pacific Ocean.
bikini atoll
Probably
the oppsite of atoll is planet