If you're heading to Gangwon-do in July and August, the peak summer vacation season, the choice is clear: immerse yourself in cool waters. Summer in Gangwon-do is broadly divided into two landscapes: snorkeling in the emerald East Sea and valley water play found in the deep valleys of the Taebaek Mountains. You won't regret either choice, but understanding the characteristics of each location beforehand will significantly increase your satisfaction.
🌊 Snorkeling in the Sea
🌲 Valley Water Play in the Forest
If you're unsure which one suits you, let's first grasp their characteristics with the table below. Fees and opening times are based on summer 2026, and it's safest to double-check the latest announcements from each facility before visiting.
| Attraction | Type | Water Characteristics | Recommended For | Things to Note (Summer 2026) |
|---|---|---|---|---|
| Samcheok Jangho Port | Sea·Snorkeling | Clear and transparent, bottom visible | Snorkeling·Transparent Canoe | 09:00~18:00, ticket sales close at 18:00. Snorkeling ~late Sept·Transparent Canoe May~Oct. Admission·Parking free (Arrive before 11:00 recommended) |
| Goseong Songjiho Beach | Sea·Swimming | Shallow and calm | Families with children·Beginners | Good for finding a spot leisurely. Check beach opening period. |
| Donghae Mureung Valley | Valley·Water Play | Cool valley water | Families·Leisurely strolls | Oseonnyeotang water play 7/10~8/20·09:00~17:00. Admission fee adult 2,000 won, Oseonnyeotang environmental management fee passenger car 4,000 won |
| Inje Baekdam Valley | Valley | Varied depths | Families·Children | From shallow spots to deep pools, good accessibility |
| Pyeongchang Heungjeong Valley | Valley | Very cold | Strongly cooling off from heat | Feet can get numb even in midsummer, beware of long submersion |
| Samcheok Deokpung Valley | Valley·Trekking | Waterfall·Yongso | Active travelers | Yongso-gol course scenic. Check in advance for trail access restrictions. |
July and August, when the full-fledged sweltering heat begins, is when Gangwon-do's 'water' shines brightest. Various beaches on the East Coast and valleys in the mountainous regions attract vacationers with their unique charms. This year, in particular, as more people turn their attention to hidden domestic gems instead of overseas travel, Gangwon-do's pristine nature is once again receiving attention.
Beyond simply escaping the heat, there's been an increase in demand for more active experiences, such as snorkeling to explore underwater landscapes or trekking in deep valleys. Gangwon-do is the optimal place to satisfy all these demands. On the East Coast, with just snorkeling gear, you can explore an exotic underwater world, and a short drive inland leads you to valleys with a cool ambiance where you can relax like a hermit. If you want to escape the crowds of famous beaches and find your own secluded spot, now is the time to take a deep look at Gangwon-do's valleys and seas.
If you're wondering which of the 14 attractions to visit, you can narrow down your destination based on who you're going with and what style of water play you desire.
1. Snorkeling: Pack Your Gear and Head to the Sea
If you're planning to snorkel and look into the transparent underwater world, Samcheok Jangho Port is undoubtedly the top choice. The water is so clear that you can clearly see the rocks and fish on the bottom, living up to its nickname 'Korea's Naples.' As it's very popular, crowds gather during weekends and peak vacation times, so it's best to aim for early morning. If you don't have gear, you can rent goggles and life vests on-site, and also enjoy transparent canoes that allow you to look down at the bottom from above the water.
If you prefer a quieter and more relaxed snorkeling experience, Goseong Songjiho Beach can be an alternative. Its gentle depth and calm waves make it perfect for beginner snorkelers or families with children. Compared to the bustling Jangho Port, it's easier to secure your own space leisurely.
2. Valleys: Choose and Enjoy According to Your Taste
Checking the items below before you leave will reduce unexpected issues on-site.
Q. Until when can I snorkel at Samcheok Jangho Port? Snorkeling generally operates until late September, and transparent canoes that allow you to see the bottom from above the water operate from May to late October. The experience center is open from 9 AM to 6 PM, with ticket sales closing at 6 PM.
Q. Can I actually play in the water at Mureung Valley? The 'Mureung Oseonnyeotang' water play area within the valley is open during the summer peak season (approximately July 10th to August 20th) from 9 AM to 5 PM. In addition to the Mureung Valley admission fee (adult 2,000 won), an environmental management fee for Oseonnyeotang (passenger car 4,000 won) is separately charged.
Q. I'm concerned about parking. Any tips? Admission and parking at Jangho Port are free, but spots fill up quickly during the summer peak season. To park close to the experience center, it's recommended to arrive before 11 AM. If you're late, you can park near Jangho Beach and walk over.
Q. Where is good to go with children? For the sea, Goseong Songjiho Beach, with its shallow depth and calm waves, is suitable. For valleys, Inje Baekdam Valley, which has many shallow areas, is a good choice. Life vests and aqua shoes are essential at any location.
Q. The valley water is said to be very cold, is that okay? In places like Pyeongchang Heungjeong Valley where the water temperature is very low, prolonged immersion even in midsummer can lead to hypothermia. It's good to come out and warm up periodically, and especially for children, it's best to manage their immersion time in short intervals.
The most efficient way to explore Gangwon-do's water play attractions is to start in NADLI's Gangwon Travel category. First, decide between the sea and valleys, then if you find a place you like, you can complete your own itinerary by sequentially checking nearby restaurants, cafes, and other attractions to visit, centered around that region's name. For example, after seeing 'Samcheok Jangho Port,' checking 'Samcheok Marine Cable Car' and 'Samcheok Restaurants' together can create a perfect one-day course. Referring to local recommendations or recent visitor reviews can help you plan even more successfully.
Summer in Gangwon-do embraces two charms: the blue sea of the East Sea and the deep valleys of the Taebaek Mountains. From full-fledged snorkeling at Samcheok Jangho Port, known as 'Korea's Naples,' to family-friendly water play at Inje Baekdam Valley, and Pyeongchang Heungjeong Valley with its ice-cold water that washes away the heat, the choices are diverse.
The key is not to declare one place as the best, but to choose a location that suits your travel style and companions. While popular tourist spots with crowds are fine, sometimes spending your own time in a quiet valley can be the best vacation. Before departing, checking real-time weather, traffic, and opening/fee announcements for each facility in the area is fundamental.