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Cổ Thạch Beach

Cổ Thạch Beach, also called the 'seven-coloured rock beach,' is a photogenic stretch of coastline in northern Bình Thuận where naturally multicoloured granite boulders become carpeted in vivid green moss each winter and spring, creating one of the most distinctive beach landscapes in southern Vietnam.

Moss-Covered RocksSeven-Coloured StonesPhotographySunrise Spot
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Overview

Best Time to Visit
Late Oct - Apr is the moss season overall, but March specifically is considered the single best month, when the moss is at its most vivid green. Aim for just after the tide recedes for the clearest view of the moss - too high and it's submerged, too low and it dries out and dulls. Avoid Jul - Aug specifically, when rain is heaviest and the sea gets rougher
Entry Fee
Free
Opening Hours
Open daily
Address
Bình Thạnh, Tuy Phong, Bình Thuận

Things to Know

Crowds
Busier on weekends and holidays, and especially during peak moss season (roughly Feb-Mar) when photographers and young visitors turn out in numbers
Safety
Occasional reports of vendors overcharging tourists, though other visitors report fair pricing at the local markets - agree prices before ordering to be safe. Beggars are sometimes present around the pagoda
Accessibility
Reachable by car or motorbike from Phan Thiết/Mũi Né, though it's a genuine 1.5-2 hour trip each way rather than a quick side trip
Seasonal
Moss season runs roughly late Oct - Apr, with March considered the single best month for the most vivid moss. Visit mid-week if possible to avoid the heavier weekend and peak-season crowds

About This Place

What Makes Cổ Thạch Beach Special

Cổ Thạch Beach occupies a stretch of coastline in Bình Thạnh commune, Tuy Phong district, in the northern part of Bình Thuận province, roughly 90km north of Phan Thiết and Mũi Né (around 300km, 6-7 hours, from Ho Chi Minh City). The beach is defined by a field of naturally multicoloured granite boulders and pebbles (reds, purples, yellows, greys), shaped by coastal erosion and tides, that extends from the shore into the shallow water. The most photogenic section, sometimes called Bãi Cà Dược, was recognised by the Vietnam Records Book in 2011 as the rock beach with the greatest variety of shapes and colours in the country. From roughly late October through April, and at its single best in March, the rocks also carry a vivid green moss coverage that has made Cổ Thạch one of the more circulated images of the Bình Thuận coast in Vietnamese travel photography - the combination of colourful stone, green moss, and clear tide pools is what draws photographers specifically. Development remains fairly light compared to Mũi Né further south, though it's worth knowing the beach isn't quite as untouched as it once was: small restaurants and stalls (including a weekend night market) have appeared along the shore in recent years, and with them, a more visible litter problem than the beach used to have, especially near the market. Chùa Hang (also called Cổ Thạch Pagoda), a hilltop temple more than 100 years old with sweeping sea views, sits right by the beach, and the whale-worship shrine Lăng Ông Nam Hải, around 200 years old, and the small fishing port of Bình Thạnh village a few minutes away round out the area's low-key cultural stops.

How to Get There

Getting There

Cổ Thạch Beach is located in Bình Thạnh commune, roughly 90km north of Phan Thiết/Mũi Né, and around 300km (6-7 hours by road) northeast of Ho Chi Minh City. By motorbike from Phan Thiết or Mũi Né, follow Highway 1A north toward Tuy Phong district, then the coastal turn toward Bình Thạnh - budget around 1.5-2 hours each way rather than treating it as a quick add-on. From HCMC, the drive is several hours north on Highway 1A; flying into Phan Thiết or a nearby city and continuing overland is another option for those coming from further afield. The beach is directly accessible from the coastal road - a short path leads from the roadside to the boulder field.

What to Expect

On the Ground

The boulder field extends along the beach for several hundred metres and out into the shallow water for 50-100 metres at low tide. The granite surface shows its natural colour year-round and carries a green moss coat in the cooler months, with the formations creating natural channels, pools, and platforms. The tide pools hold small marine life - sea urchins, small fish, crabs - visible in the clear water between the rocks. Beyond the boulder zone the beach opens into a more conventional sandy stretch. The overall atmosphere is generally quiet outside weekends and the peak of moss season, when the beach draws noticeably more visitors, including many coming specifically for photos. An hour or so of walking and scrambling covers the main formation. The surrounding landscape is typical northern Bình Thuận: sparse scrub, fishing villages, and a semi-arid character before the coast transitions to wetter conditions further south.

Travel Tips

Tips

Cổ Thạch is a photography destination first and a beach destination second - the coloured, moss-covered boulders are the reason to come, and the light conditions at sunrise or on overcast mornings are significantly better than in flat midday sun. The beach fits naturally into a coastal ride between HCMC and Mũi Né, or as a northern extension of a Mũi Né base, though the distance (65-90km one-way from Mũi Né) means it's a genuine excursion rather than a casual stop. Go in with realistic expectations about development: it's quieter and less built-up than Mũi Né, but roadside stalls and the litter that's come with them mean it's no longer the completely untouched beach some older write-ups still describe. Carry extra supplies and plan the visit around the tide and the light rather than just the calendar.

Insider Tips

Based on real traveler experiences and commonly mentioned advice from multiple visitors.

Visit mid-week during peak moss season (Feb-Mar) for the best colour with fewer crowds than weekends
Bring cash, and confirm prices at local restaurants and stalls before ordering
Plan for a day trip or one night at most - food and accommodation options nearby are limited in both quantity and consistency
Sunrise is the best time for photography - the low light catches the texture of the moss and the natural colour of the rocks, and reflects in the tide pools between the boulders
The rocks here are naturally multicoloured - red, purple, yellow, and grey tones from thousands of years of marine sedimentation - which is why the area is also called 'bãi đá bảy màu' (seven-coloured rock beach). The moss season (roughly late Oct - Apr, peaking Feb - Mar) adds a vivid green layer on top of that natural colour, which is what most photos are chasing
Time your visit just after the tide has receded for the clearest view of the moss carpet - too high a tide submerges it, too low and it dries out and loses some vividness
Wear shoes suitable for walking on wet rock - the boulder and tide pool area requires scrambling and bare feet on the moss are slippery
It's honest to say the 'untouched' reputation has slipped a little in recent years - as roadside stalls and small restaurants have sprung up along the beach, litter has become a more visible problem than it used to be, especially in the section near the market. A useful workaround: walk along the shore to the right, further toward the moss-covered section - the rocks there are bigger and more vividly coloured (less worn down by foot traffic), the space is more open, and it's noticeably less littered than the area right by the market
Golden hour for photos is roughly 5:30-7:00 AM, when the soft early light brings out the moss's colour against the clear water
Cổ Thạch Pagoda (Chùa Hang) sits right by the beach and is worth a look, though be aware of beggars sometimes present around the pagoda grounds
Don't take rocks or pebbles home as souvenirs - leave the beach as you found it for the next visitor
If your timing allows, the Nghinh Ông Festival - a lively local fishing-community celebration held around the middle of the 8th lunar month - is a good reason to visit outside moss season
The beach is roughly 65-90km north of Phan Thiết/Mũi Né depending on the exact route and source - budget more like 1.5-2 hours by motorbike than a quick side trip
There are some restaurants and drink vendors near the beach now, though options and quality are limited - bring extra water and don't count on a wide choice of food

FAQ

Common questions from travelers who've visited this place.

When is the best time to visit Cổ Thạch Beach?›
Moss season runs roughly late October to April, with February-March generally the most vivid. Sunrise is the best light for photography, and visiting just after the tide recedes gives the clearest view of the moss.
Is the beach clean?›
It's a genuine concern worth knowing about - as small restaurants and stalls have sprung up along the shore in recent years, litter has become more visible than it used to be. It's still a relatively lightly developed beach, just not as pristine as older write-ups suggest.
Are accommodation and food nearby affordable?›
Local guesthouses and restaurants are generally affordable, though quality is inconsistent and options are limited - confirm prices before ordering. Fresh seafood is a highlight when you find a good spot.

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