Archipelagos are islands located near the continent of Ascaron. You can reach them through the Portal Keeper - Mary Read (1410,746) or by using the Area Manager (ALT + V). The main storyline also passes through these islands, where you receive runes as rewards to upgrade your equipment.
What can be dropped on the archipelagos?
- Level 50–65 equipment for analysis or selling to NPCs. (Drop rate is higher than on the main continent)
Transmutation Stone for Hats, 
Mini Transmutation Stone for Boots, 
Mini Transmutation Stone for Gloves - drops only on the archipelagos.
Channel System
Each island is duplicated into 3 instances. This was done so that you can comfortably hunt monsters without player competition.
The archipelagos are divided into three islands
Zephyr Island
Average monster level: 52.
Frost Island
Average monster level: 58.
Fortune Island
Average monster level: 68.