
The archipelago consists
predominantly of pre-Tertiary continental islands primarily of quartzites and shales covered
by basaltic lava. Geologically, the
islands are part of Sundaland. The
islands have extensive fringing and patchy
reefs coral reefs.
The best time to visit the
islands is during the dry season, generally from April to October. The islands
are influenced by the northwest monsoon during which winds from the
west-northwest predominate and ocean currents are in an easterly direction.
During the monsoon, rainfall averages 40 mm/day. During the southeast
monsoon, dry winds from the east-southeast predominate and the ocean currents
are in a westerly direction bringing water masses from the Flores Sea. Upwelled water masses during the southeast monsoon from
the Flores and Banda Seas provides
lower sea surface temperatures than during the northeast monsoon. The shallow
slopes (5° to 15°) of the island shelves in the Java Sea (which rarely exceeds
a depth of 55 m), provide environments for extensive reef development. Climate
Tropical, It is hot here in the dry season (approximately April to October) and
wet and humid in the rainy season (December to March).
The island beaches and beautiful coral reefs. Island
- island in karimun jawa most sandy white, And hence it is ideal for the
activity sunbathe, diving and fishing
Tour
activity that is appropriate will be done in karimun Java :



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