Kra Isthmus Crossing — Chumphon to Ranong HotSprings.
Distance
130 km
Duration
1 day
Climb
900 m
Kra Isthmus Crossing — Chumphon to Ranong Hot Springs.
Cross the Malay Peninsula at its narrowest point — just 44km of land separate the Gulf of Thailand from the Andaman Sea. Highway 4 runs from Chumphon over the low spine of the Kra Isthmus and down the Pakchan River estuary, with Myanmar on the far bank, to Ranong — Thailand's wettest, least-touristed provincial capital, famous for its geothermal springs. An easy, atmospheric sea-to-sea day.
Quick facts
SurfacePaved
Distance130 km
Days1
Total climb900 m
DifficultyEasy
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The route.
ChumphonStart · Start in Chumphon on the Gulf coast. Highway 4 west crosses the peninsula at its narrowest — Gulf of Thailand to Andaman Sea in a single morning.
Kra Isthmus MarkerScenic Point · The roadside monument at the Isthmus of Kra — the narrowest point of the Malay Peninsula. From here the Pakchan estuary marks the Myanmar border all the way south.
Punyaban WaterfallPhoto Spot · Roadside waterfall 16km north of Ranong with a walkway to the upper tier. A short leg-stretch before the final run into town.
Raksawarin Hot SpringsScenic Point · Ranong's 65°C mineral springs — public soaking pools in a forest park just off Phet Kasem Road. Perfect for post-ride muscles.
RanongEnd · End in Ranong town. Day-trip boats to Myanmar's Kawthaung run from the pier; eat seafood at the Andaman fish market.
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