The Frozen Seaway is a polar area first introduced in Monster Hunter 4. This map is set along an Arctic coastline, where the glacial ice sheets meet the freezing sea. This area is inhabited by a wide variety of monster types, including Lagombi, Kushala Daora, and Zamtrios. A massive whirlpool can be seen in the ocean not far from the coast.
In Area 4, up on the cliff, the shed skin of the Kushala Daora can be seen.
Hunters are able to climb onto and "hop" between large icicles on the ceiling of Area 6