Preparation Items and Precautions for Ganghwa Tidal Flat Experience

Ganghwa Dongmak Beach is a place where a pine forest and a white sand beach reveal a wide tidal flat at low tide. This tidal flat is not a place for catching creatures, but for observation only, and the Ganghwa Tidal Flat Center, which used to provide tidal flat explanations, has been closed since November 2024. Therefore, the entirety of the tidal flat experience now is "visiting Dongmak Beach at the right tide time, observing safely, and returning." The preparations are summarized in order below.

At a Glance

• Who it is good for: Families who want to observe tidal flat creatures with their children, and travelers who want to see the beach walk and the wide tidal flat scenery.
• How long it takes: The time the tidal flat is exposed is the observation time. Plan for one to two hours around low tide, but be sure to leave before high tide.
• When it is good: The tide and weather of that day are more important than a specific month. If fog or sea mist rolls in, skip the observation. The campsite and showers are open only in summer.
• What you cannot do now: Visiting the Ganghwa Tidal Flat Center and educational programs (closed).

3 Things to Check Before Departure

1. Tide — Check the high and low tide times for your visit day on the National Ocean Research Institute’s Smart Tidal Forecast. Check it once when planning your trip and once more before departure. Set your phone alarm to ring about an hour before high tide so you don’t miss the time to withdraw.
2. Weather — The Korea Tourism Organization’s Travel Safety Guidelines advise leaving the tidal flat immediately if fog or sea mist appears. If fog is forecast, switch from tidal flat observation to a beach walk.
3. Facility Operation Status — Showers, changing rooms, and campsites operate seasonally. As of 2026, the campsite is open from July 3 to October 31, and the showers and changing rooms are open from July 25 to September 27 (Ganghwa-gun Dongmak Beach Guide). Since the periods change every year, check the guide for the year of your visit again.

On-site

1. Arrival — Park your car in the parking lot (2,000 won) and first check the on-site information board. If there is a daily notice regarding mudflat access or facility use, that takes precedence.
2. Mudflat Observation — Do not enter immediately just because the tide has receded; check the instructions first. If you enter the mudflat, wear safety equipment such as life jackets in accordance with the Korea Tourism Organization’s safety guidelines. Do not catch or collect organisms; observe them with your eyes only. Ganghwa County warns that mudflat organisms may disappear if harvesting continues.
3. Beach Walk — On days when entering the mudflat is difficult, walk along the white sand beach and pine forest. If you climb up to Bunori Dondeok (a crescent-shaped fort built in 1679) at the eastern end of the beach, you can get a panoramic view of the entire mudflat. It is located right next to Dongmak Beach, so you can walk there and back.
4. Withdrawal — Exit immediately when the high tide alarm sounds. Exit regardless of the remaining time if fog begins to roll in. Use the shower facilities if they are open (3,000 won for adults, 2,000 won for children, with hot water).

Items to Prepare

• Safety Equipment: Life jacket (do not rely on on-site rentals; bring your own).
• Shoes and Gloves: Since your feet will sink into the mudflat mud, it is convenient to wear shoes or boots that do not come off easily, as well as gloves to protect your hands. These are not officially required items but are recommended based on experience.
• Change of Clothes, Towel, and Plastic Bags: These are especially necessary during seasons when the shower facilities are not open.
• Waterproof Phone Pouch: You need to check the tide schedule, so be sure to bring your mobile phone with you.
• Water, Snacks, and Hat: There is no shade on the mudflat.

Frequently Asked Questions

Q: Can I catch clams or crabs in the tidal flats? A: No. Ganghwa County advises visitors not to catch any organisms but to observe them with their eyes only, in order to preserve the tidal flat ecosystem.

Q: Is the Ganghwa Tidal Flat Center currently open? A: No. It has been closed for remodeling since November 1, 2024, and the county plans to conclude the project in 2027. The reopening date has not been determined, so please check the Ganghwa County Notice before visiting. For inquiries, contact the Coastal Revitalization Team of the Marine and Fisheries Division at Ganghwa County: 032-930-3843.

Q: Where can I check the tide times? A: You can view the high and low tide times for the sea area you are visiting via the Korea Hydrographic and Oceanographic Agency’s Smart Tide Prediction. Do not determine how long to stay on the tidal flats based solely on low tide times; instead, set an alarm to alert you before the high tide arrives.

Q: When can I use the shower facilities at Dongmak Beach? A: These are seasonal facilities. In 2026, the showers and changing rooms were open from July 25 to September 27, and the camping site from July 3 to October 31. Since these dates change annually, please check the Ganghwa County’s guide for the year of your visit.

Verified Information (as of 2026-10-22)

Place	Address	Operating Hours	Closed Days	Fees	Phone
Dongmak Beach	1481 Haean-nam-ro, Hwado-myeon, Ganghwa-gun, Incheon (around Dongmak-ri 7)	Beach is open year-round. Campsite: July 3, 2026 – October 31, 2026 (10:[확인 필요] same day to 10:[확인 필요] next day). Shower and changing rooms: July 25, 2026 – September 27, 2026.	Beach is open year-round.	Beach: Free. Parking: 2,000 KRW. Shower and changing rooms: Adults 3,000 KRW, Children 2,000 KRW. Campsite: Deck 25,000 KRW per night (2 days), 2,500 KRW per hour; Tent 20,000 KRW per night (2 days), 2,000 KRW per hour. Paid rest area: 3,000 KRW for up to 4 hours.	032-937-4445
Bunori Dondae	185-1 San 185-1, Sagiri, Hwado-myeon, Ganghwa-gun, Incheon	Open year-round	Open year-round	Free	-
Ganghwa Tidal Flat Center	37 Haean-nam-ro 2293beon-gil, Hwado-myeon, Ganghwa-gun, Incheon	Closed for renovation	Closed from November 1, 2024, until the end of renovation (expected 2027)	Closed for renovation	032-930-3843 (Ganghwa-gun Marine and Fisheries Division, Coastal Revitalization Team)

Information is subject to change, so please check the official website before visiting.

This article was revised by the operator by comparing the AI draft with official sources. All photos are actual shots, and their sources are credited.