The Koh Yao Islands — Koh Yao Noi and the larger Koh Yao Yai — float in the middle of Phang Nga Bay, equidistant between Phuket and Krabi. They offer a pace of life that the more developed parts of southern Thailand have largely left behind: rubber plantations, fishing villages, and limestone karsts rising from calm green water.
Located in Krabi, Thailand
The Koh Yao Islands occupy a rare stretch of Phang Nga Bay where tourism hasn't yet rewritten the landscape. Koh Yao Noi in particular draws travelers who want the scenery of Krabi Province without the beach-bar soundtrack, while Koh Yao Yai remains quieter still. Getting here takes effort, which is precisely the point.
Koh Yao Noi and Koh Yao Yai are administratively part of Phang Nga Province, not Krabi Province, though they sit almost exactly halfway between Krabi Town to the east and Phuket to the west. For travelers based in Krabi, they function as a day trip or short-stay destination — far enough to feel like a different world, close enough to reach in under an hour by speedboat.
Phang Nga Bay surrounds the islands on all sides. The bay is famous for its limestone karst outcrops — dramatic columns of rock emerging from shallow green water — and from either island you can see them from almost any elevated point on the shoreline. Koh Yao Noi, the smaller of the two at roughly 27 square kilometers, sits to the north and is the more visited island. Koh Yao Yai, larger but less developed, sits to its south.
The main access points define the geography as much as any street map would. Manoh Pier on Koh Yao Noi is the primary landing point for boats from Krabi and Phuket. On Koh Yao Yai, boats arrive at Khlong Hia, Laem Yai, and Loh Jark piers depending on the service. There are no roads connecting the two islands; you travel between them by longtail boat.
Travelers deciding between island options in this part of southern Thailand should read the full guide to where to stay in Krabi before committing, since the Koh Yao Islands require a different set of expectations than beachside stays in Ao Nang or Koh Lanta.
Early mornings on Koh Yao Noi are marked by the sound of cockerels rather than coffee machines. The interior of the island is a working landscape: rubber plantations, small farms, and fishing nets drying on wooden racks near the shore. Muslim fishing communities have lived here for generations, and the rhythm of daily life — prayer times, market mornings, fishing schedules — is still set by local needs rather than tourist arrival patterns.
By midday, the light turns hard and white over the water. The limestone karsts in the bay seem to flatten in the noon glare, their shadows disappearing. This is the time locals retreat indoors, and you should too: find a shaded spot at a guesthouse or local restaurant and wait for the late afternoon, when the karsts regain their depth and the whole bay takes on a warmer tone.
After dark, the islands go quiet quickly. There is no nightlife strip on Koh Yao Noi, and even less on Koh Yao Yai. A few guesthouses have outdoor seating where guests gather after dinner, and the occasional small bar operates near the main road on Koh Yao Noi, but the nights are genuinely dark and quiet. If that sounds like deprivation, these islands may not be the right fit. If it sounds like relief, you will sleep better here than almost anywhere else in the region.
ℹ️ Good to know
The Koh Yao Islands have a majority Muslim population. Visitors should dress modestly when moving through villages — covering shoulders and knees is appropriate away from the beach. Alcohol is available at some tourist-facing guesthouses and restaurants but is not widely sold or consumed.
Koh Yao Yai is a step quieter again. With a larger land area but fewer tourist facilities, it suits travelers who want to cycle through coconut groves and see Phang Nga Bay without meeting other foreign visitors at every turn. The trade-off is less infrastructure: fewer restaurants, fewer accommodation options, and less reliable transport between pier and guesthouse.
The Koh Yao Islands don't run on a schedule of ticketed attractions. The main activity is orientation by bicycle or motorbike, stopping wherever the scenery or a smell from a roadside kitchen demands it. The interior roads on Koh Yao Noi are manageable on a bicycle in the cooler hours; the island's highest point gives views across the bay that justify the climb.
Phang Nga Bay itself is the primary draw. Kayaking out among the karst formations is a quieter, more self-directed version of what tour groups do on day trips from Phuket. The Krabi kayaking guide covers what to expect on the water, and several local operators on Koh Yao Noi offer guided paddles around the bay's sea caves and mangrove channels.
For those who want to combine a visit with snorkeling or diving, boat trips from the Koh Yao Islands can reach sites that are less trafficked than those accessed from Ao Nang. The Krabi snorkeling guide and the Krabi diving guide both explain what conditions and marine life to expect in the bay.
The islands also work well as a base for day trips. Koh Yao Noi and Koh Yao Yai are both close enough to Krabi's mainland attractions that a boat connection to Koh Phi Phi or the Krabi coast is realistic within a single day.
⚠️ What to skip
Road conditions on both islands can be unpredictable. Bends are sharp, some sections are steep, and animals cross without warning. After rain, surfaces become slippery. Always wear a helmet on a motorbike and reduce speed on unfamiliar roads — this applies especially on Koh Yao Yai, where roads are less maintained than on Koh Yao Noi.
The food on Koh Yao Noi reflects the local Muslim community's cooking traditions: seafood-forward, mildly spiced, and prepared fresh each morning. Small restaurants along the main road near Manoh Pier serve khao tom (rice soup), roti with curry, and grilled fish at breakfast and lunch. These places open early and close when the food runs out, which is usually early afternoon.
Lunch and dinner options expand slightly at guesthouses and tourist-facing restaurants closer to the beach areas on the island's western side. Grilled whole fish, prawn dishes, and simple Thai curries are the standard. Prices are lower than in Ao Nang for equivalent quality, which partly reflects the lower overheads and partly the fact that the local economy isn't yet calibrated around tourist spending.
On Koh Yao Yai, options narrow considerably. There are small local restaurants near the main piers, and some guesthouses offer dinner for guests if notified in advance. Bringing snacks and a water supply for days spent exploring inland is sensible, since village shops are sparse and closing times are unpredictable.
Alcohol is available at some guesthouses and restaurants aimed at international visitors on Koh Yao Noi, but it's not the kind of place where you stumble between bars. Cold beer with a sunset view of the bay exists — just don't expect a menu of cocktails or a late-night option.
💡 Local tip
Ask your guesthouse what time the local market runs. On Koh Yao Noi there is typically a morning market near the main pier area where vendors sell prepared food, fresh produce, and snacks at prices oriented toward local residents rather than tourists. It is one of the more honest windows into daily island life.
All access to the Koh Yao Islands is by boat. There is no bridge, no ferry-on-demand service, and no fixed-wing or helicopter connection. Boat schedules are tide- and season-sensitive, so checking departure times in advance is essential.
From Krabi, the standard departure point is Tha Len Pier, located north of Krabi Town. Longtail and speedboat services connect Tha Len with Manoh Pier on Koh Yao Noi; the journey takes approximately 45 minutes to one hour by longtail, or around 30 minutes by speedboat. From Phuket, boats depart from Bang Rong Pier on the island's northeast coast, with speedboats taking roughly 30 minutes to Koh Yao Noi.
Travelers arriving via Krabi International Airport (KBV) — which is about 9 km from Krabi Town — will need to reach the pier by taxi or pre-booked transfer before catching the boat. The Krabi airport guide covers transport options from the terminal in detail. Similarly, the guide to getting around Krabi explains how to navigate the mainland before and after your island stay.
On the islands themselves, motorbike rental is the most practical option for covering ground. Bicycles work well on Koh Yao Noi's flatter coastal roads in the early morning or late afternoon. On Koh Yao Yai, a motorbike is close to essential for reaching anything beyond the immediate pier area. Some guesthouses arrange airport transfers or boat pickups — it's worth confirming this at the time of booking.
There are no metered taxis, no Grab service, and no fixed-route local buses on either island. Shared songthaews (pickup trucks with bench seating) occasionally operate between pier and village areas on Koh Yao Noi, but schedules are informal. Budget time for waiting, and don't plan tight connections between a boat departure and onward travel.
Accommodation on Koh Yao Noi ranges from simple fan-cooled guesthouses near Manoh Pier to boutique resorts on the island's western shoreline facing the karst formations. The western-facing rooms earn their premium: watching the late-afternoon light change on those limestone columns from a private terrace is the kind of view that justifies a more expensive room.
Budget travelers can find clean, basic guesthouses near the pier for rates well below what Ao Nang or Koh Phi Phi charge for comparable rooms. Mid-range options — small resorts with pools and air conditioning — cluster along the western coastal road. Luxury is genuinely available at the higher end of the market, with a handful of boutique properties offering the full Phang Nga Bay panorama at prices that reflect the exclusivity of the setting.
Koh Yao Yai has fewer options and less infrastructure for booking in advance. It suits travelers who are comfortable with a degree of uncertainty, or who arrange accommodation directly before arriving. Those who want more certainty and a wider range of options should look at the broader Krabi accommodation guide to compare the Koh Yao Islands against alternatives like Khlong Muang Beach on the Krabi mainland.
The best position on Koh Yao Noi for most travelers is the western shore between the pier and the southern tip of the island. You get beach access, bay views, and a short ride to the pier without being isolated from the few restaurants and services that exist. Staying too far south on the island means significant scooter time for every meal or boat departure.
For couples who prioritize seclusion and scenery over convenience, the Koh Yao Islands have a strong case. The Krabi honeymoon guide considers the islands alongside other quieter options in the province.
The best time to visit is between December and March, when Phang Nga Bay is calmer and the sky is clear enough to see the karst formations in full. From May through October, the southwest monsoon brings heavier rain and rougher seas; boat services may reduce in frequency or be cancelled during bad weather. The islands don't shut down entirely during rainy season, but the trade-offs are real.
The best time to visit Krabi guide covers seasonal conditions across the province in detail, including how the monsoon affects different destinations differently. The Koh Yao Islands, sitting in the middle of the bay, experience conditions that fall somewhere between Krabi's mainland and Phuket's west coast.
ATMs are limited on both islands. Bring sufficient Thai baht (THB) in cash before you arrive, particularly if staying on Koh Yao Yai. Card payment is not widely accepted at local restaurants and smaller guesthouses. Mobile data coverage exists on Koh Yao Noi but can be patchy in the interior; on Koh Yao Yai it is less reliable.
Emergency services are limited compared to the mainland. The Tourist Police number is 1155 and the general emergency number is 191. For medical emergencies, evacuation to Phuket or Krabi Town will typically be required for anything beyond minor issues. Travel insurance that covers medical evacuation is not optional here — it is genuinely important.
Koh Yao Noi sits in Phang Nga Bay between Krabi and Phuket, offering one of the few genuinely unhurried island experiences left in the region. Think rubber plantations, sea kayaking routes, fishing villages, and limestone karsts on the horizon rather than beach bars and jet skis.
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