アメリカ内務省のインスタグラム(usinterior) - 9月28日 00時23分

Endless views stretching to the sea await adventurers in #Maine’s #Acadia #NationalPark, which has more than 150 miles of trails to explore. To guide hikers and protect fragile plants and soils, trail builder Waldron Bates created small, artfully arranged rock piles, or cairns. Bates cairns have shown #hikers the way for more than a century -- by walking @acadianps, you’re following in the footsteps of history. Photo courtesy of James Kaiser (@jameskaiser_). #usinterior #findyourpark

[BIHAKUEN]UVシールド(UVShield)

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