Phu Khao Ya is a useful stop if your Ranong trip needs some open space and a walk with a view. Its rounded grass hills suit road trippers, landscape photographers and visitors who would rather choose their own turning point than commit to a long trek.
Also called Khao Hua Lan, the site is in Ngao subdistrict, Mueang Ranong district, beside Phet Kasem Road, or Highway 4. Use the Thai name, ภูเขาหญ้า, when checking directions: this is the grass-hill landscape in Ranong, rather than a forest trail with a similar name.
Follow the shape of the hills
The Tourism Authority of Thailand describes three or four small hills extending from north to south. Grass covers the slopes, with no large trees across the open hills. That simple outline is the attraction: you can see the curves of the ridges instead of looking through a canopy.
Footpaths lead uphill for views across the surrounding landscape. Start by looking at the route and the conditions underfoot, then decide how far to go. You do not need to cover every ridge to appreciate the setting; a lower viewpoint may be the better choice when the ground is wet or the sun feels strong.
Let the weather shape your visit
The hills change colour with the season. TAT broadly associates May to October with green grass and November to April with drier, brown tones. Treat those months as a guide, since rainfall affects what you will actually find. A November visit does not guarantee a completely golden hillside.
Morning or late afternoon is worth considering for gentler sunlight, as TAT recommends. Bring water, a hat and shoes with grip: the open slopes offer little tree shade. Check the forecast before leaving, and postpone an uphill walk if thunderstorms are approaching or the paths look slippery.
For a road trip, save the location before setting off and arrange your onward transport before starting the walk. Follow any local signs, stay on existing paths and take litter away. Keep the stop flexible so you can enjoy the landscape without rushing to a summit or waiting for a particular sunset.
Find Phu Khao Ya, Ranong on Google Maps.
Visitor information and references: TAT Ranong guide, Phu Khao Ya section; Ranong Tourism and Sports Office destination news; PPTV’s 2026 Ranong guide.