Dubbing itself the "Blue City", Geoje is not so much a city but an island -- Korea's second largest after Jeju in fact -- and a loose collection of villages and settlements scattered in coves around the coastline. The two largest of these are Okpo (옥포) on the east coast and Gohyeon (고현) on the west. Most of the tourist sites lie between these two settlements around, and just off, the southern coastline. The intercity bus terminal is in Gohyeon but services also run from the odd remote bus stop.
The key attraction of the island is its natural coastal beauty. Outside of the two cities it is a near-endless series of calm blue beached coves and sheer pine-forested grey cliffs overlooking the sea.
Geoje actually has a significant role in Korea's naval history. The coast of Okpo is the setting for one of Korea's greatest military victories over Japan, during early stages of the 1592-1598 Imjin War. United under Admiral Yi Sun-sin, Korean armor-plated turtleships successfully repelled Japanese attackers from taking the Jeolla region. Although this ultimately did not stop the war in its tracks, it did slow the invasion a little and provide a morale boost to the nation.
Today, Geoje is a shipbuilding powerhouse hosting both Samsung and DSME shipyards. Despite the large number of foreign residents employed to supervise these facilities and subsequent notably high foreign presence in Okpo and Gohyeon, English signage on the island varies between minimal and non-existant.
 Get in
Prior to December 2010, access to Geoje was limited to ferries or over the one bridge connecting to the mainland at Tongyeong. With the completion of the dual bridges and tunnel that comprise the Busan-Geoje direct expressway link, access by both express bus and car has been made significantly faster and easier.
 By air
There is no airport in Geoje, although Gimhae International Airport (IATA: PUS) is actually closer than Busan itself. Flying into Gimhae from the south (e.g. Hong Kong, Shanghai) provides great aerial views of Geoje.
 By bus
Buses leave approximately hourly from the Busan Seobu bus terminal and take 1 hour and 20 minutes to reach Okpo via the new bridge (in reality it's actually a bit shorter) for 7200 won. Note that where the bus drops you off is often not where you can pick it up again. Services to Okpo for example will drop you at a local bus shelter outside the Geoje Museum but for the return trip you need to pick up the bus from a stop about 500m further east along the same road, just by the traffic lights outside a Foreigners Mart. Note that this bus can be busy by the time it arrives in Okpo as it comes from Janseungpo bus terminal and you may find yourself with standing room only. Your other option is to make your way to the Gohyeon Intercity Bus Terminal to get back to Busan. Alternately, the area around Windy Hill has an obscure intercity link to Masan that runs every 2 hours until 8 pm.
There is also an express bus route from Busan Seobu to Jangseungpo (1 hour and 30 minutes). The bus terminal is a little far from the ferry piers and with no clear directions, so you should take a taxi (2200 won - 5 minute ride).
Intercity buses also still service Geoje from Masan via Tongyeong (and also Busan, although this route being now superceded is likely to be phased out) taking roughly 2 hours and 1 hour respectively.
 By ferry
The coast of Geoje is littered with ports and there used to be many ferry options from Busan to Geoje. However at time of writing (October 2011) all ferry services to and from Busan have been discontinued due to the convenience of the new Expressway.
(This information is from speaking to the ferry company directly. If in doubt, call before you travel with this option)
 By car
Private cars can take the toll expressway from Busan to Geoje. One key advantage to this is that you can take a brief break at a rest stop constructed on a man-made peninsula besides the undersea tunnel, the view from here being stunning.
 Get around
 By car
This is the ideal scenario and the transport of choice for Korean visitors. Daegeoje-ro (대거제로) is a highway that loops the island following the cliffs closely and offering near continual spectacular views of the ocean and coastline as well as passing by practically every attraction.
If in a group, hiring out a taxis could provide an alternative, but they are rarely seen outside of the designated stands. This is one of the very, very few places in Korea where you should keep an eye on the cabbies; they'll take the long way unless you call them on it.
 By bus
Geoje has an extensive local "inner-city" (cough) public bus service catering towards locals []. For tourists, it is a disaster, plain and simple. There is no single service that takes the Daegeoje-ro around the entirety of the island. Instead, the island is divided into a bunch of color-coded regions matching up with number-coded buses (for example, 10-19 and a yellow color represent greater Okpo, Jangseungpo, and parts of Gohyeon). The catch here is that there is only one stop where adjacent service regions match up and it's not announced nor explictly signposted. And then if you do find it (it is almost never on Daegeoje-ro but instead on a small unmarked detour off the road) there may be more stops than there are sides of the road with no signage in English nor Korean pointing you towards which services your next region. Outside of the two cities, services are infrequent enough to be unforgiving and furthermore, simply stop at sundown stranding you wherever you may be.
Full maps of the bus system in Korean exist on roughly every second bus stop as well as online[]. If you attempt to tackle the full system, try to pay attention to the colors first, then the individual numbers. The square is not where you are now but the Gohyeon Intercity Terminal.
The most important route is the number 11 anyway and this is a frequent (roughly every 15 minutes) service that passes through the major cities and Jangseungpo Port.
In theory, it should be possible to loop the island using the number 11 to pass through the two cities, then transferring on to a blue coded 50-series bus for the rest. In theory, communism works.
If you do manage to figure the system out, bus fees are 1200 won in cash, or 1000 won using a transport card. For foreign cards, Busan Mybi, Daegu cards and Daejeon Hankkumi are not accepted, but Seoul T-money is.
A private company runs a tourbus service following Daegeoje-ro [].
Blue City Tour Route #1 Geoje Shipbuilding Marine Cultural Center (조선해양문화관) → Oedo Haegeumgang (외도 해금강) → Hakdong Mongdol Beach (학동흑진주몽돌해변) → The Hill of Wind (바람의언덕) → Sinseondae Cliff (신선대) → Samsung Heavy Industries (삼성중공업) → Historic Park of Geoje POW Camp (포로수용소 유적공원)
Blue City Tour Route #2 Geoje Shipbuilding Marine Cultural Center (조선해양문화관) → Oedo Haegeumgang (외도 해금강) → Daewoo Shipbuilding & Marine Engineering (대우조선해양) → Kim Young Sam Presidential Archives & Exibit Hall (김영삼 대통령 기록전시관) → Okpo Daecheop Memorial Park (옥포대첩기념공원)
Blue City Tour Route #3 Sanbangsan Beewon (산방산비원) → Birthplace of Cheongma, Yu Chi-hwan (청마생가) → Geoje Giseonggwan/Jilcheong (Government Office) (거제기성관/질청) → The Hill of Wind (바람의언덕) → Sinseondae Cliff (신선대) → Hakdong Mongdol Beach (학동흑진주몽돌해변) → Oedo Haegeumgang (외도 해금강) → Historic Park of Geoje POW Camp (포로수용소 유적공원)
Blue City Tour Route #4 The Hill of Wind (바람의언덕) → Sinseondae Cliff (신선대) → Hakdong Mongdol Beach (학동흑진주몽돌해변) → Geoje Shipbuilding Marine Cultural Center (조선해양문화관) → Daewoo Shipbuilding & Marine Engineering (대우조선해양) → Historic Park of Geoje POW Camp (포로수용소유적공원) → Geojedo Sea Spa (거제도해수온천)
 By ferry
Many of the attractions of Geoje lie on smaller island and islets just off the coast so ferry usage is mandatory. Specifically, close vantage of Haegeumgang and access to Oedo and Camellia Islands require it.
Each port along the south coast hosts a different ferry company that service Haegeumgang and Oedo, however, even if just visiting Haegeumgang you will likely be railroaded into a 1.5 hour stopover at Oedo. What you cannot do is use the ferry to travel between coastal ports as you must leave Oedo with the same company with whom you arrived.
(You will be assigned a badge upon boarding that identifies you with that ferry. You could in theory swap with someone else on the Island, although unlikely since most visitors are with Korean tour groups)
In practice, ferries departing from Jangseungpo Port are the most useful as this is a mere one bus away from Okpo (take the #11 to the Art Centre). You can also travel to Jangseungpo town from Busan Seobu directly.
Furthermore, access to Camellia Island appears possibly limited to Jangseungpo port. Journeys to Haegeumgang and Oedo from Jangseungpo start from 08:30 in the morning.
Please note that the ferry journeys depend on the weather. It is possible that some portions of the journey (or the whole journey) may not be available in bad weather. Calling
 On foot
With settlements spaced approximately 5-20 km apart, walking between individual attractions would mostly be a foolish endeavor. However, one can easily traverse Okpo and the nearby Great Victory Park on foot (likely faster than bus in fact). Similarly, the area around Windy Hill on the peninsula leading up to Haegeumgang can be covered on foot with ease.
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Being Korea, Geoje is covered with hiking trails.
If just looking for a casual stroll, the 4km long trail from Okpo to Deokpo is very pleasant and consists of trails along the coast through pine forest and segments along red boardwalk where you an see older ladies foraging for shellfish for the local restaurants. Passes by the Great Victory Park and Deokpo at the end hosts a couple of hoe (sashimi) restaurants and a coffee shop for refreshments. One of the restaurants doesn't welcome foreigners, but the one two doors down does and is actually quitely literally signposted that way. Starting point is at the north end of Okpo port.
Geoje has a tonne of swimming beaches around its coast.
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Being a largely coastal destination, hoe (sashimi) restaurants are plentiful and delicious.
Furthermore, Geoje city council proclaims the island has 8 signature dishes:
Geoje also has a large migrant population, so you can also find many international restaurents that may be hard to come by elsewhere in Korea. (eg. Pakistani)
[add listing] Drink
The usual array of bars and hofs exist in the major townships of Okpo and Gohyeon.
[add listing] Sleep
A jjimjilbang exists in Okpo roughly halfway between Geoje Museum and Okpo Port. Naturally, expect sauna access, cotton pyjamas and a bunch of blankets to sleep on the heated floor. Look for the neon sign. Price is 7000 won a night, and the sleeping facilities are larger than usual.
The townships all contain the usual array of motels. Further to this, outside of the larger towns, minbak (homestays for tourists) are scattered around the coast, often attached to restaurants.
Being largely a resort island, large hotels are everywhere.
 Get out
From Tongyeong or Masan, the beautiful riverside fortress and delicious food of Jinju or the dinosaur fossil towns of Goseong are a short bus ride away.