1. Mongtan Jeju (몽탄 구좌) ↗

The poster noted that reservations were extremely competitive ('예약이 치열해') and the restaurant was clearly packed, with a lively, atmospheric dining room. 💡 팁: Reservations are essential and fill up far in advance — walk-ins are essentially not possible, so book through the restaurant's reservation channel as early as possible.

★★★★☆ 붐빔 · Gujwa-eup, eastern Jeju · x.com

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2. Ghibli Exhibition (지브리 전시) ↗

A visitor strongly recommended the Ghibli exhibition to all Jeju travelers, posting a photo of themselves immersed in a scene — indicating noticeable foot traffic and buzz. 💡 팁: Visit on a weekday morning when exhibition crowds tend to thin out, and check the venue's official channels for timed-entry slots before going.

★★★☆☆ 붐빔 · Jeju (exact venue not specified in source) · x.com

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3. Manjanggul Cave (만장굴) ↗

Multiple visitors mentioned Manjanggul's recent reopening and listed it as a must-visit, signaling a surge of new interest after its relaunch. 💡 팁: Arrive right when it opens to beat the midday rush; the cave stays cool inside so no need to rush on hot afternoons, but lines can build quickly after 10 AM.

★★★☆☆ 붐빔 · Gujwa-eup, eastern Jeju · x.com

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1. Andol Oreum & Batdol Oreum (안돌오름 & 밧돌오름) 🔍

The source states that only a few dozen visitors come per day — among the quietest oreum in Jeju, with sweeping grasslands and grazing horses giving a truly untouched pastoral feel. 💡 팁: A rental car is necessary as public transport doesn't reach here; visit on a weekday morning for the best chance of having the twin craters almost entirely to yourself.

★★★★★ 여유 · Gujwa-eup, eastern Jeju · secretsofkorea.tistory.com

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2. Sinheungni Coastal Road (신흥리 해안도로) 🔍

Described as a quiet, picture-perfect seaside village road with almost no tourist traffic — a true hidden gem for a peaceful stroll or sunset shot from the coastal pavilion. 💡 팁: The source recommends visiting around 10 AM as part of a eastern Jeju day course; the sunset from the coastal pavilion is the highlight.

★★★★☆ 여유 · Gujwa-eup, eastern Jeju · ieave0047.tistory.com

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3. Namwon Keunong Haean (남원큰엉해안) 🔍

Described as a healing cliffside walk with blue sea views and almost no crowds — the source strongly recommends an early morning walk here. 💡 팁: The source specifically calls out morning walks as the best time; bring comfortable shoes for the rocky coastal path.

★★★★☆ 여유 · Namwon-eup, southern Jeju · ieave0047.tistory.com

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4. Hwansangsup Gotjawal Park (환상숲 곶자왈 공원) 🔍

Described as a beloved local healing spot inside a primeval lava forest — uniquely cool and shaded, making it especially appealing in the August heat with low tourist presence. 💡 팁: Guided eco-tour programs are available on-site; the admission fee is minimal and no reservation is required, so you can drop in any time.

★★★★☆ 여유 · Hangyeong-myeon, western Jeju · secretsofkorea.tistory.com

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5. Jongdalri Beach (종달리 해변) ↗

Described as far less crowded than Hyeopjae or Hamdeok beaches, with crystal-clear water, good snorkeling, and charming small cafés — a quieter alternative to the big-name beaches. 💡 팁: Head here in the morning before the beach cafés fill up; the shallow, clear water is safe for children and casual swimmers.

★★★★☆ 여유 · Near Seongsan, eastern Jeju · kimkirini.tistory.com

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Suwolbong & Eonggalgil (수월봉 & 엉알길) 🔍

A UNESCO Global Geopark site with dramatic volcanic-ash cliffs and a stunning coastal trail, yet the source notes it is still largely unknown to tourists — offering emerald sea views and geological wonders in near solitude. The trail connects to Olle Route 12.

Hangyeong-myeon (Gosan-ri), western Jeju · secretsofkorea.tistory.com

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Gapaedo (가파도) 🔍

A small, flat island just 15 minutes by ferry from Moseulpo Port where the whole island is rideable by bike in about an hour — the source calls it a still-quiet hidden paradise with simultaneous views of Marado and Hallasan at sunset.

Off Moseulpo, southern Jeju · secretsofkorea.tistory.com

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Sagye Beach & Sanbangsan (사계해변 & 산방산) 🔍

Far less visited than Hyeopjae or Jungmun, this beach offers stunning sunset silhouettes of Sanbangsan mountain and even has a nearby fossil excavation site — a hidden favorite among locals for sunset drives.

Andeok-myeon, southwestern Jeju · ieave0047.tistory.com

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