The Surf Window

Shemya

Alaska, USA

Reef breakExpert

An extreme reef break on Shemya Island at Alaska's western edge, powerful waves, icebergs possible in winter, ultra-remote and dangerous.

Typical Conditions

The Surf Window

Swell Window

N
OptimalW (270°)
WindowSSW–NNW (210°–330°)
Size7-11ft

Wind

E

Offshore

Tide

Mid

LowMidHigh

Season

June–August

JFMAMJJASOND

The Wave

Type

Left and right

Bottom

Sharp reef

Shape

Thick, heavy tubes

Length

100–180m

Skill Level

  • •Who it's for: Expert
  • •Why: Extreme power, cold water, isolation, and serious reef demand elite big wave experience.

Hazards

  • •Extremely powerful, heavy waves
  • •Sharp reef
  • •Glacial ice in water
  • •Extreme weather, rapid changes
  • •Arctic conditions
  • •No easy rescue option

Local Tips

  • •Military controlled island, access very difficult.
  • •Only for absolute expert big wave surfers.

Location

Map showing the location of Shemya in Alaska, USA

52.7167, -174.0833