Hallyeohaesang National Marine Park (한려해상국립공원) covers Gyeongsangnam-do Province’s Sacheon, Geoje, Tongyeong, Hadong and Namhae, and Jeonnam Province’s Yeosu. The 510,323㎢-wide sea park encompasses Dadohae Islets, Bijindo Island and Haegeumgang. The Donam Complex in Tongyeong is being developed as a world-class marine tourist attraction. On Hansando Island there are many historical sites dedicated or related to the great Admiral Sunsin Yi such as battlefields where the Admiral defeated Japanese naval forces. Other sites include those related to the Imjinwaeran War such as Jeseungdang, Chungryeolsa and the turtle lighthouse. The Sanyang Road is a great driving course along which you can look around the entire Mireukdo Island and appreciate the scenery. From Dalma Park you can enjoy the great view of Dadohae Islets. Major attractions include Hansando Island (main island), Bijindo Island and Maemuldo Islands; the latter two are often said to be the focal point of this scenic sea park.

Cheonjedan are altars set up by people a long time ago to offer goods to Heaven. In old records such as the Samguksagi (History of the Three Kingdoms), there are records that "The Silla Kingdom organized rituals in Taebaeksan Mountain, which it considered as a Bugak Mountain (Northern Mountain, one of the mountains for rituals)." This shows that Taebaeksan Mountain was considered to be a holy mountain in the past. Cheonjedan, or the altar, is situated at the summit of Taebaeksan Mountain. With Cheonwangdan altar in the center, there is the Janggundan Altar in the north and a smaller altar in the south. The altars are built by stacking stones, a sign of a sacred ground. The Cheonwangdan altar is made of natural stone. It has an oval shape and measures 27.5 meters in circumference, 3 meters tall, 7.76 meters wide, and 8.26 meters from front to back. The natural stone is a sort of gneiss, with the upper stone being round and the bottom stone rectangular. Such a form is based on the philosophy of Cheonwon Jibang. In the valleys nearby, there are small or large stacked stone pagodas and stone platforms, which were used for prayers. It is forbidden to kill wild animals or break off tree branches in the area.

The 1,200-meter-high Cheongtaesan Mountain is a mountain where planted and naturally growing trees flourish in harmony, creating dense forests that provide a habitat for woodland creatures. In the summer, the forest is a convenient stopover for vacationers headed for the East Coast and both children and adults can enjoy learning about the local ecology at the Forest Education Facility.

Julmudeom refers to the unmarked graves of anonymous Catholic martyrs in Darakgol (Nugok), Cheongyang (Chungcheongnam-do). Darakgol is also the birthplace of St. Choi Gyeong-hwan and Choi Yang-eop (the second Catholic priest in Korea) was also martyred in Gwacheon, Gyeonggi-do. Because the grave is of more than one individual, it was given the name Julmudeom (group graveyard).Although the exact number of martyrs and their exact cause of death is unknown, they were buried by family resulting in the 37 mounds in three sections. In 1982, Cheongyang Cathedral established monuments to commemorate the name-less martyrs, and Julmudeom became a well-known site for Catholic pilgrimages. In 1986, the remains of St. Choi Gyeong-hwan Francisco were relocated to the Jeoldusan Martyrs’ Shrine reducing the total number of mounds at Julmudeom to 36. 

The Museum of Natural History has numerous collections of rare shellfish, butterflies, birds, animals, and fossils from around the world on display. Visitors can also observe live reptiles and other animals at the museum.

Namnong Memorial Hall is an art gallery dedicated to the works and memory of Namnong Heo Gun, a famous artist of the traditional Southern School of Painting. The hall was opened as an art gallery by Namnong Heo Gun (1908-1987) himself in 1985. The Southern School of Painting features natural scenes with accompanying calligraphy. The hall now features over 200 works of art by some of the most famous Korean paintings in history, as well as pottery from China and Japan.

Wolmyeong Park is a popular tourist destination of Gunsan City and connects five mountains in the vicinity. The total size of the park is 2.6 km² and there is a 12km-long walking trail in the park. From the Susi Tower, which resembles a flame and or wind-blown sail, people can see all of Gunsan City, the sea to the south of Gunsan, the mouth of Geumgang River, and the giant Janghang smelting factory. At the foot of Seollimsan Mountain is an old temple named Eunjeoksa, and the Jeil Reservoir is located between Jeombangsan and Seollimsan Mountain. The park also contains an observatory, a sculpture park, and various monuments. The park has well-arranged gardens and 30-year old rattan and cherry trees. Every April, when the park is covered in cherry blossoms and is especially beautiful, a cherry blossom photo contest is held at the park.

Muan Tidal Wetland Research in Muan, Jeollanam-do was established in an effort to raise awareness of the ecology and importance of natural wetlands. It is the nation’s largest educational center for natural ecology. The center consists of a three-story indoor exhibition hall as well as a wetland ecology park spanning 48,100㎡. Inside the exhibition hall is a multi-purpose theater that plays 3D educational videos. A tour of diverse facilities including the wetland eco-center and the tidal wetland exploration center is also available inside the hall. Outside the exhibition hall is a wetland ecology park and experience zone, where visitors may observe various ocean creatures and salt water plants.