Turnagain Arm, Marine inlet in south-central Alaska, United States
Turnagain Arm is a marine inlet in south-central Alaska that extends between the Chugach Mountains and the Kenai Peninsula. Its deep waters support maritime activity, and the shoreline is marked by mountain slopes and glacial streams.
British explorer James Cook mapped this inlet in 1778 during his expedition and named it after having to turn back when realizing it led nowhere. This early exploration shaped European understanding of Alaska's geography.
The Dena'ina people called this inlet Tutl'uh and have maintained fishing and hunting practices along its shores for centuries. Visitors can still sense the importance of these traditions when traveling through the region today.
The Seward Highway runs along the inlet and provides multiple viewing points to observe its extreme tidal changes throughout the day. Visitors can easily access the shoreline from pull-offs and rest areas along this main route without needing special equipment.
This inlet generates a tidal bore, a rare phenomenon where water surges inland creating waves that move against the current when tides shift. This striking event can be viewed from the highway and draws visitors interested in witnessing this natural power.
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