Kayaking Krabi Mangroves at Bor Thor: Caves, Canyons and Ancient Art

Published 8 November 2026 · 9 min read

The sea off Ao Nang is grey and choppy, the island boats are rocking at anchor, and you are wondering what to do with the day you planned for the beach. That is exactly the morning when kayaking Krabi mangroves at Bor Thor makes sense. The water there is flat, green and sheltered by limestone walls, and the caves do not care about the weather.

I send friends on this trip more often than on most island tours, mostly because it surprises them. People expect a gentle paddle in some trees. What they get is a tunnel through a mountain, red paintings on a cave wall that are thousands of years old, and a quiet inner lake that feels far from the busy beach strip.

What is the Bor Thor kayaking trip in Krabi?

It is a guided full-day kayak trip from the pier at Ban Bor Thor village, about a 30-minute drive from Krabi, through mangrove channels and limestone caves. You paddle in small kayaks, usually two people per kayak, and the guide leads the group from cave to cave.

The village sits inside Than Bok Khorani National Park, an area of winding rivers, small bays and limestone hills full of caves. This corner of Krabi is known as one of the early human settlement areas in Thailand, and archaeologists have found artifacts and rock paintings here. Many of these caves can only be reached by kayak, which is the main reason to come.

People sometimes mix it up with Ao Thalane, the other well-known mangrove area north of Ao Nang. Both are part of the same wider landscape of mangrove creeks and karst towers. Bor Thor is the route with the famous caves and cave art, so if the paintings are what you want to see, this is the one.

The tour on our site is the Kayaking Ban Bor Thor Caves full-day tour, priced from ฿1790. It is run by a local licensed operator, and we handle the booking, the pickup details and any questions before and after.

What does the kayak route through the mangroves and caves look like?

The route links three main spots: the Tham Lod tunnel, the Tham Pee Hua Tho painting cave and the Tham Hao Wong inner lake, with mangrove channels in between. The exact order and the time spent at each depend on the water and the group.

Here is the shape of the day as the tour describes it:

Tham Lod is the highlight for most people. It is a long tunnel under a limestone mountain, and you paddle straight through it with stalactites hanging overhead and stalagmites along the edges. The water level inside is stable, so it is calm rather than scary, even for nervous paddlers.

Tham Hao Wong is the quiet part of the morning. It is an inner lake surrounded by rock, and most groups simply drift for a while. If you are the kind of person who likes to take photos, this is where to do it, because nobody is rushing you and the water is mirror-still on a calm day.

Between the caves you paddle through mangrove forest. The roots arch out of the water, small crabs run along them, and you will hear more birds than engines. It is not a fast workout. It is a slow look at a part of Krabi most visitors only see from a car window.

How old are the cave paintings at Bor Thor?

The drawings in Tham Pee Hua Tho are believed to be 2000 to 3000 years old, and there are over 200 images on the cave walls. They are painted in red and dark tones, and you can see them clearly from the cave floor.

Locals link the cave's name to old human skulls reportedly found inside. The paintings show people, animals, hands and shapes that are harder to read. The most famous image is a mythical creature that has become a symbol of Krabi province. Ask the guide to point it out, because it is easy to walk past if you are looking at the stalactites instead.

Getting into the cave usually means leaving the kayak at a small landing and walking up a short wooden walkway or ladder. It is not hard, but the steps can be wet. Wear shoes that grip, not flip-flops that slide off.

A lot of people tell me afterwards that this was the part they did not expect to enjoy. On a beach holiday, standing in front of art made by people who lived here long before any temple or town existed is a strange and good feeling. Kids usually love the handprints, because they can compare them to their own.

Do you need kayaking experience for the Bor Thor trip?

No. The day starts with a short briefing at the pier, where the guide shows you how to hold the paddle and steer. That is enough, because the water is sheltered and the distances between stops are short.

Most first-timers spend ten minutes zig-zagging and bumping into mangrove roots, then it clicks. In a two-person kayak, the person at the back steers. Put the stronger or more confident paddler there, and let the front person set the rhythm.

A few honest points so nobody is surprised:

• You will use your arms and shoulders for a couple of hours. It is gentle, but not nothing, especially in the heat.
• Your legs and backside will get wet. Kayaks always take on a bit of water.
• In the caves it can be dark and a little cramped in places. People with strong claustrophobia should talk to the guide before entering.
• Mosquitoes can show up near the mangroves, mostly in shaded, still spots.
• Individuals with heart problems or other serious medical conditions should check with us before booking, as with any active day tour.

If what you really want is speed and adrenaline, this is the wrong trip. The white water rafting trip on the Songprak River is the Krabi day for that. Bor Thor is about scenery, quiet water and a bit of history.

How do tides change kayaking in the Krabi mangroves?

The tide decides how much of the mangrove you can paddle into and how much headroom you have in the caves. Krabi has a big tidal range for Thailand, and in the creeks you can see the water line shift during a single morning.

At higher water the channels are wider and the paddling is easier; at low water some side creeks turn to mud and the guides take a different line. This is why the order of the stops is not fixed. The guide reads the water on the day and adjusts, and that is a good sign, not a disorganised one.

For Tham Lod the tour notes say the water level inside is stable, so the tunnel works at any normal tide. The variation is more in the mangrove side channels, which can look very different from one week to the next.

You do not need to plan around the tide yourself. The pickup times are set and the route is adjusted by people who paddle here every day. Just know that two friends who did the trip a month apart may describe slightly different routes, and both will be right.

Is Bor Thor kayaking a good rainy day option in Krabi?

Yes, it is one of the best. When the wind picks up and island boats are bumpy or cancelled, the creeks around Bor Thor stay sheltered, and the caves are covered anyway.

Krabi's rainy season usually brings showers in bursts rather than all-day rain, so a morning of paddling often fits between them. Rain in the mangroves is actually quite pleasant: it is warm, it cools the air and it makes the forest smell green. What matters is wind and sea, not a bit of drizzle, and wind hardly reaches these channels.

The trip also works well for families. Kids sit in a kayak with a parent, the stops are short, and there is always something to look at: a crab, a monkey on the bank, a bat in a cave, a strange rock that looks like a face. The swim in the Ta Pom river after lunch is usually where children burn off the rest of their energy.

Some families combine it with other land-based days. The Emerald Pool, Hot Springs and Tiger Cave jungle tour is another good choice when the sea is not cooperating, and the two make a nice pair if you have two unsettled days in a row.

If you are choosing between the main non-island days, this is roughly how I see it:

Bor Thor suits curious, calm travellers and families; the jungle tour suits people who want to swim in pools without paddling; rafting suits groups who want noise and splashing.

What wildlife will you see while kayaking in Krabi?

The most common sightings are crab-eating macaques, mudskippers, crabs, kingfishers and other birds, and bats in some caves. Nothing is guaranteed, but monkeys turn up on most trips.

Macaques are smart and quick. If they come close to the kayaks, keep food and plastic bags inside your waterproof bag and do not feed them. A monkey that has learned tourists mean snacks will grab anything loose, including sunglasses.

Mudskippers are the funny ones: small fish that walk on mud and climb roots. Kids love spotting them. Birds are easier to see if you stop paddling for a minute and wait, since the splash of a group tends to send them off.

Inside the caves, look up. Bats hang in the higher parts of some chambers. They are harmless and will mostly ignore you if you keep voices low and do not shine phone lights straight at them.

What to bring for kayaking at Bor Thor

The tour recommends a swimsuit, sunglasses, sunscreen and a towel, and it supplies a life jacket and a waterproof bag. The waterproof bag is the key item: everything that cannot get wet goes in it before you leave the pier.

My packing list on top of that:

• Shoes that can get wet and still grip: old trainers, water shoes or sport sandals with straps.
• A light long-sleeved shirt or rash guard, because the sun on the water is strong even when it looks cloudy.
• A cap or hat that will not blow off, and a strap for your sunglasses.
• Insect repellent for the mangrove stops.
• A small amount of cash for snacks or a cold drink.
• Dry clothes to change into after the river swim, so the ride back is comfortable.

Leave big cameras and drones at the hotel unless they are fully waterproof. A phone in a simple waterproof pouch is enough for the cave photos, and you will paddle better with both hands free.

How to book and plan your Bor Thor day

The tour runs from Krabi with hotel pickup and drop-off, and the exact meeting time is sent right after booking. You need nothing else: no car, no rental kayak, no park planning on your own.

A few practical tips:

• Book it for a day when the forecast looks windy or unsettled, and keep your best sea days for islands like the Hong Islands by longtail boat.
• Eat a light breakfast. You will be paddling within an hour of pickup, and lunch is at 12:30.
• Tell us about small children or anyone with health issues when you book, so the operator can plan kayak seating.
• Expect to be back at the hotel in the late afternoon, with enough energy left for a sunset walk on the beach.

If you have questions, send them through the booking request on the tour page or on WhatsApp, and we will check the details with the operator for your date.

Frequently asked questions

How much does the Bor Thor kayaking tour cost?

The full-day tour from Krabi is priced from ฿1790 per adult. That includes hotel transfer, life jacket, waterproof bag, an English speaking guide, accident insurance, fruit, soft drinks and lunch. Check the tour page for child prices on your date.

How long is the kayaking part of the day?

The paddling takes most of the morning, from about 09:00 until lunch at 12:30, with stops at the caves. It is broken into short sections, so you are never paddling hard for long.

Can young children join the Bor Thor kayak trip?

Families with children do this trip often, with kids sitting in a kayak with a parent. Tell us the children's ages when you book so the operator can plan seating and life jackets.

Is it safe to kayak through the caves?

The route is guided, everyone wears a life jacket, and the water inside Tham Lod is stable and calm. The main things to watch are slippery steps at cave landings and low rock overhead in places.

Will I get wet on the kayaking tour?

Yes, at least partly. Water drips off paddles and collects in the kayak, and there is a swim in the Ta Pom river after lunch. Put phones and money in the waterproof bag that comes with the tour.

Is Bor Thor better in the morning or afternoon?

The tour runs as a morning paddle with lunch and a river swim afterwards, finishing with the transfer back around 15:30. Morning light in the mangroves is softer, and it is cooler on the water.

Do I pay a national park fee at Bor Thor?

Bor Thor is inside Than Bok Khorani National Park. Fees and what is included can change, so check the tour page or ask us on WhatsApp before your trip.

Updated 8 November 2026.