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Turnagain Arm is a narrow waterway extending about 40 to 45 miles east-west, forming part of the northern boundary of Alaska's Kenai Peninsula.
It connects with Cook Inlet and is known for some of the largest tides in the United States, with tidal ranges reaching up to 40 feet. The arm features dramatic U-shaped valleys shaped by glaciers, rugged mountains rising steeply on both sides, and glaciers including Portage Glacier and Explorer Glacier.
At low tide, expansive mudflats are exposed, while tidal bores sometimes form when tides rush in at speeds of up to 6 miles per hour. Turnagain Arm has a rich geological history with sedimentary rocks and evidence of past glacial action, and it creates striking landscapes with steep mountain slopes and flat-topped terraces.
The region is popular for scenic drives along the Seward Highway that offers breathtaking views of the water, mountains, and frequent wildlife sightings. It has cultural and historical significance linked to early exploration by Captain Cook’s expeditions and remains a notable destination for outdoor recreation.
| Address | Alaska, USA |
Turnagain Arm is located in Alaska, United States.
Turnagain Arm is situated in the state of Alaska.
The address of Turnagain Arm is Alaska, USA.
Yes, Turnagain Arm is family-friendly and attracts visitors of all age groups.
Visitors usually spend a few hours to a full day exploring Turnagain Arm.
Yes, there are several hotels and accommodations near Turnagain Arm in Alaska.
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