Bouldering Guy

Bouldering Guy is a rock climber (bouldering is a kind of rock climbing that doesn't use ropes or harnesses) that is stranded on Death Mountain in The Legend of Zelda: A Link Between Worlds. He put a Message in a Bottle that washed ashore of Lake Hyrule. Bring that to the Kakariko Village Milk Bar Owner to get a bottle of Premium Milk, then bring that to the Bouldering Guy on Death Mountain. After delivering it, Link can keep the Bottle.

After the rescue, Bouldering Guy can be found in the Milk Bar.