"Olle" is the Jeju word for a narrow pathway that is connected from the street to the front gate of a house.
The first trail route was opened to the public in September, 2007 and currently eleven routes have been opened.
Like 'Camino de Santiago' in Spain or Shikoku Pilgrimage 'Ohenro' in Japan,
Jeju Olle hopes all walkers who explore the routes gain "peace, happiness and healing" on the road.
Hallasan stands out at the center of South Korea's southernmost island, boasting exquisite landscapes
due to its varied volcanic topography and vegetation distribution ranging vertically through the subtropical, temperate, frigid and alpine zones.
The special nature of this area led to its being designated and managed as a national park in 1970,
a UNESCO Biosphere Reserve in 2002, a World Natural Heritage Site in 2007.
Muljangori Oreum registered as a Ramsar
The crater of Sunrise Peak consists of 99 rock peaks along its rim that look as if they are escorting the crater and forming a castle.
For that reason, the basin was considered to be holy, and it was named "Seongsan" which literally means holy mountain.
The view of the sunrise here is truly remarkable
Manjang Cave was designated as Natural Monument No. 98 on March 28, 1970.
The 7,416-meter long cave has been officially recognized as the longest lava tube in the world.
The annual temperature inside the cave ranges from 11℃ to 21℃, thus facilitating a favorable environment throughout the year.
The cave is also academically significant as rare species live in the cave.
Created by spewing lava, "the lava turtle", "lava pillar", and "Wing-shaped Wall" look like the work of the gods.
It is considered to be a world class tourist attraction
Near Jungmun Beach, a popular spot for vacationers and locals, is an impressive pillar rock formation named Jusangjeolli Cliff in Daepo.
The formation looks like a piece of art that has been sculpted delicately with a sharp tool.
Jusangjeollidae usually refers to vertical pillar shaped rocks in a rectangular or hexagonal shape and is often composed of basaltic lava.
Such a formation is the result of a sudden contraction when thick molten lava flows from an active volcanic crater and cools rapidly.
This site is full a wonder of nature, where hexagonal rock pillars stand on top of each other like giant stairs.
The waves that hit the pillars are also interesting to see as, when the tide is high, they can leap up to 20 meters high.
Jungmun Daepo Haean Jusangjeollidae, which is 30~40m high and 1km wide,
is the largest such formation in Korea and is designated as Natural Monument No. 443.
Thanks to a viewing platform with wooden steps, it is possible to see Jusangjeollidae closely.
The place is also called Jisatgae Rock, named after the old name of Jungmun-dong in Seogwipo-si, Jisatgae.
According to a legend, Cheonjeyon Falls means "the pond of God" where nymphs descend to take a bath.
The first cascade of Cheonjeyon Falls is 22 m high and the water forms a pond 21 m in depth.
Up from Cheonjeyon Falls is the stunning arch bridge Seonimkyo, which is also called Seven Nymphs Bridge.
Water springs from a spot between the precipice of the waterfall and the lower clay layer.
From the ceiling of a cave located east of the first waterfall, the water drops and grows into several streams of water.
Since it is gushing out of stony ground, the water has been used for curing diseases as well as for drinking.
From ancient times, people have believed that they can recover from any disease
if they stand under a waterfall on either the Buddhist All Souls Day or Cheoseo Day (at the end of August).
Right next to the falls is Yeomiji Botanical Gardens and many other tourist attractions