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Camp Coiner's Mystery?
tbh the japanese colonial tunnels are the real story here, not some cold war myth. camp coiner sits on top of what used to be a japanese army supply depot from the 1920s, and those guys built like moles. there's a map in the seoul museum of history that shows the full network under yongsan, some of it runs right under what's now the golf course on the base. if your grandpa was there in the 50s he mightve stumbled into one that was still accessible before they sealed everything after a couple of collapses in the 60s. the korean urban exploration forums have some grainy photos from the 80s before they poured concrete over the last known entrance near itaewon-ro
honestly the underground tunnel thing is pretty well known among older korean locals around yongsan, not just camp coiner. there's a whole network of japanese-built tunnels from the colonial period that connects a bunch of military installations in the area, some of them are just drainage but others were legit bunkers. my friend's dad used to work as a civilian on base and he said they found a sealed entrance near the old pax building in the 90s, army filled it with concrete the next week. no one's getting into those now, but the yongsan park museum has some old photos of the original japanese garrison tunnels that might match what your grandpa meant. just don't expect to find anything still open, they've been sealing them off for decades
camp coiner isn't really the kind of place with public archives or a visitor center, it's still an active military base. you'd need a sponsor to get past the gate, and even then most old buildings are sealed off or repurposed. the tunnel thing comes up every few years though, usually from guys who worked in the motor pool or supply depots in the 70s and 80s, they'd talk about hearing things under the concrete floors. if you want to dig into it without clearance, try the yongsan garrison library or the seoul global center, they have old base maps and korean war era city plans that might show utility tunnels running under what used to be the camp's perimeter. your grandpa's story is probably tied to one of those, not a secret bunker, but still a cool piece of local lore
Seoul on a Budget: Tips 2026
Stay in guesthouses or hostels in Hongdae or Myeongdong for as low as 20,000-40,000 won per night. For a private room, try a goshiwon (student housing) starting at 300,… 🏠 Affordable Accommodation
Stay in guesthouses or hostels in Hongdae or Myeongdong for as low as 20,000-40,000 won per night. For a private room, try a goshiwon (student housing) starting at 300,000 won per month. Book directly with the property or use local platforms like Yanolja for discounts.
🍜 Cheap Eats
A bowl of bibimbap or kimchi jjigae at a local restaurant costs 6,000-8,000 won. For budget meals, visit convenience stores like GS25 or CU for triangle kimbap (1,200 won) and instant ramen. Street food like tteokbokki (3,000 won) is filling and cheap.
🚇 Transportation Savings
Use a T-money card for subway and bus rides at 1,400 won per trip, with free transfers within 30 minutes. A day pass costs 5,500 won for unlimited rides. Walk between nearby attractions like Gyeongbokgung and Insadong to save even more.
🎫 Free Attractions
Many palaces, including Gyeongbokgung and Changdeokgung, offer free admission on the last Wednesday of each month. Cheonggyecheon Stream and Namsan Park are always free to explore. Visit Bukchon Hanok Village for a glimpse of traditional Seoul without spending a won.
💰 Local Money-Saving Tips
Locals often use apps like Coupang Eats for discounted meal deliveries or visit traditional markets like Gwangjang Market for cheap, fresh food. Avoid tourist-heavy areas for souvenirs; instead, shop at Daiso for affordable Korean snacks and gifts.
🎭 Free Cultural Experiences
Watch a free traditional performance at the Korea House or at the Namsangol Hanok Village on weekends. Many museums, like the National Museum of Korea, have free permanent exhibitions. Check out Hongdae street performances for live music and dance.
🍺 Nightlife on a Budget
Join a free walking tour of Hongdae or Itaewon to discover cheap bars and pubs. Many places offer happy hour deals from 5-7 PM with 50% off drinks. For a unique experience, visit a pojangmacha (street tent bar) for soju and anju under 10,000 won.
📱 Essential Apps
Download Naver Map for accurate transit directions and KakaoTaxi for affordable rides. Use Mango Plate to find restaurant discounts and coupons. For free Wi-Fi, connect to the city's public network at subway stations and parks.
this is a solid list, one thing i'd add is that the t-money card also works for the airport railroad express (arex) and you can get a discount if you buy a "climate card" from the subway machines for like 62,000 won a month, unlimited rides on seoul metro and buses. also, for free stuff, the seoul city wall hiking trail from naksan park gives you amazing views of the city and bukchon without paying a thing, plus it's way less crowded than namsan. gwangjang market is great but go for the sundubu (7000 won) at the stalls in the back, not the front ones near the entrance which are pricier for tourists
honestly the guide nails it, one thing i'd add is that the t-money card deposit is refundable at any convenience store when you leave, most people forget and just toss it. also for free stuff, the seoul philharmonic does free outdoor concerts at seoul plaza in spring and fall, just show up with a blanket. if you're near hongdae on a friday night, the playground area has buskers that are genuinely talented, way better than the overhyped clubs
i live here and a few things this guide nails. one tip that saves me money is the "climate card" for 62,000 won a month, unlimited subway and bus, even works on the airport express if you're staying a while. for cheap eats, skip the main streets in hongdae and go into the alleys behind the art center, there's a place that does dwaeji gukbap (pork soup) for 7,000 won and it's way better than the tourist spots. also, the seoul city wall trail from naksan park is free and gives you killer views without the namsan tower price tag, way less crowded too