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Geomundo (Korean: 거문도; Hanja: 巨文島/巨門島; RR: Geomundo; MR: Kŏmundo), also known as Port Hamilton, is a small group of islands in the Jeju Strait off the southern coast of the Korean Peninsula, located approximately at 34°1′35″N 127°18′45″E. The islands are 12 km2 (4.6 mi2). There are three principal islands, the two larger ones, Sodo to the west (Seo-do, 서도, 西島) and Sunhodo to the east (Dong-do, 동도, 東島) forming a harbor with the smaller island in the center. On this central island, Observatory Island (or Go-do, 고도, 古島), there was a British naval base from 1885 to 1887. Today, the islands form a part of Samsan-myeon, Yeosu City, South Jeolla Province of South Korea, with the Samsan township offices located on Observation Island.
Description via Wikipedia (lead extract) · name cross-verified Wikidata + Wikipedia.
Geomundo (거문도) — verified Korean island (섬). In Yeosu.
34.02639, 127.3125 · View on map →
Verified & tracked since 2026-08-20 · 5 verified snapshots. Recorded changes:
Append-only, timestamped — the record of WHEN a fact changed, which a latecomer cannot backfill. Full feed: /changes.json · machine-readable: get_history("island:geomundo").
Embed it — the badge shows this entity’s verification tier + Skill Score and links back here (a “via KoreaAPI” citation):
<a href="https://aiagentlabs.co.kr/artist/geomundo.html"><img src="https://aiagentlabs.co.kr/badge/geomundo.svg" alt="Verified by KoreaAPI"></a>
[](https://aiagentlabs.co.kr/artist/geomundo.html)
Distances from verified coordinates (Wikidata P625), great-circle.
Part of the Yeosu verified travel guide →