Monkey Island Cat Ba Trip Is It Worth Visiting
Is Monkey Island Cat Ba worth visiting? For most travellers the honest answer is yes, as long as you know what you are signing up for. This small island in Lan Ha Bay, a short boat ride from Cat Ba town, offers a soft sandy beach, clear water in good weather, a steep scramble to one of the best viewpoints in the bay and a troop of wild monkeys that are entertaining, cheeky and sometimes a little too bold. It is not a nature reserve, not a zoo and not a quiet hideaway in peak season.
At Haiphong Adventure we plan a lot of Cat Ba and Lan Ha Bay trips, and Monkey Island comes up in almost every conversation. This guide explains what the island is really like, who will love it, who may be disappointed, how to get there and how to make the most of a few hours there. Boat times, entrance arrangements and prices change from season to season, so treat the practical details as a guide (updated October 2026) and confirm them with your boat operator before you go.
What Is Monkey Island Cat Ba
Monkey Island is the name travellers use for a small limestone island in Lan Ha Bay, just east of Cat Ba town. Locals know it by its Vietnamese name, Cat Dua island. It earned its English nickname from the wild macaques that live on the rocky slopes above the beach and often come down to the sand looking for food.
The island is part of the same karst landscape that makes Lan Ha Bay and neighbouring Ha Long Bay famous: steep grey cliffs covered in green forest, small coves and calm channels between hundreds of islets. Monkey Island adds two things many other islands do not have, an easy-to-reach beach and a viewpoint you can climb on foot.
What you will find there
- A curved sandy beach facing the bay, good for swimming when the sea is calm.
- A rough rocky trail to a viewpoint over Lan Ha Bay.
- Wild monkeys around the beach and lower slopes.
- A resort area with bungalows and a restaurant, used by overnight guests and day visitors.
Facilities, opening arrangements and what day visitors can use depend on the current management, so ask your boat operator what is available on the day you go.
How To Get To Monkey Island From Cat Ba Town
First you need to reach Cat Ba Island itself. Most travellers come from Haiphong or Hanoi by a combination of bus and ferry, or by private transfer. Our guide to the Haiphong to Cat Ba ferry and bus journey explains the main routes and what to expect on the way.
From Cat Ba town there are three common ways to reach Monkey Island.
On a Lan Ha Bay boat tour
This is the easiest option. Many day tours of Lan Ha Bay include a stop at Monkey Island, usually combined with kayaking, a floating fishing village and a cooked lunch on board. You do not need to worry about boats or timings, but your time on the island is limited, often an hour or so.
By private or shared boat
Small boats leave from the harbour area near Cat Ba town and the ride takes roughly 15 to 20 minutes, depending on the boat and the sea. Agree the price, the pick-up time and the pick-up point clearly before you leave, and keep the boat driver’s phone number saved.
As an overnight guest
If you stay at the resort on the island, the boat transfer is usually arranged for you. This is the best way to enjoy the beach early in the morning or late in the afternoon, after the day boats have gone.
>>> Haiphong To Cat Ba Travel Time And Schedule Info
The Beach On Monkey Island
For many visitors the beach is the main reason to go. The sand is fine and pale, the water is clear on calm days and the backdrop of forested cliffs makes it one of the prettiest beaches you can reach quickly from Cat Ba town. Compared with the town beaches, it feels more like a tropical island, especially early or late in the day.
Swimming is usually pleasant from late spring to early autumn, when the water is warm. In winter the air can be cool and grey, and most people simply walk on the sand and take photos. There is generally no lifeguard, so swim close to shore, stay within your depth and avoid swimming after a heavy lunch or a few beers.
Beach tips
- Bring a towel, sunscreen, a hat and drinking water.
- Wear sandals or water shoes, because rocks and shells can be sharp at the edges of the beach.
- Leave valuables on the boat or keep them in a closed bag that you never leave unattended. The monkeys are quick.
- Take your rubbish back with you. The bay is a protected landscape and waste washes up easily.
Meeting The Monkeys On Monkey Island Cat Ba
The monkeys are the island’s celebrity residents, and seeing them up close is a highlight for many visitors. They are wild macaques, not pets. Over the years they have learned that tourists often carry food and shiny objects, so some of them approach people boldly, climb on bags and even grab sunglasses, phones or bottles.
Most encounters are fun and harmless, but bites and scratches do happen, usually when people feed the monkeys, tease them or try to take selfies too close. A monkey bite should always be cleaned well and checked by a doctor, so it is worth taking a few simple precautions.
Simple rules for a safe encounter
- Do not feed the monkeys, and do not walk around with food or drinks in your hands.
- Keep sunglasses, hats, phones and plastic bags out of reach.
- Keep a calm distance of a few metres and avoid direct, long eye contact.
- Do not shout, chase or try to touch them, especially mothers with babies.
- If a monkey grabs something, let it go. Your phone is not worth a bite.
- Keep a close eye on children, who are at eye level with the animals.
Watched from a respectful distance, the monkeys are fascinating: grooming each other, playing on the rocks and watching the boats come and go.
Recommended tour
The Luxury Halong Bay Tours
Love limestone islands and calm water? Cruise among the karsts of Ha Long Bay on a comfortable day trip with caves, kayaking options and a relaxed lunch on board.
From $109 per person
The Viewpoint Hike
Behind the beach, a rough trail climbs the limestone ridge to a viewpoint high above the bay. It is short but steep. Much of the path is bare, sharp rock rather than a built staircase, and you will use your hands in places. For fit and sure-footed walkers, the climb usually takes around 20 to 30 minutes each way, depending on your pace and how many photo stops you make.
The reward is huge. From the top you look across dozens of green islets scattered over blue-green water, with the beach and the boats tiny below you. On a clear day it is one of the most memorable views in the whole Cat Ba area.
Before you start climbing
- Wear proper shoes with good grip. Flip-flops are a bad idea on sharp, uneven rock.
- Bring water, especially in summer, when the rocks heat up quickly.
- Avoid the climb after rain, when the limestone becomes slippery.
- Do not climb alone, and turn back if you feel unsure.
- Skip it if you have knee problems, a fear of heights or limited mobility. The beach is still worth the trip.
If you enjoy this kind of short, steep hike, our guide to trekking, hiking and swimming on a Cat Ba tour suggests more trails on the main island.
Pros And Cons Of Visiting Monkey Island
To help you decide, here is a balanced summary based on what our guests usually tell us after their trip.
| Pros | Cons |
|---|---|
| Pretty sandy beach close to Cat Ba town | Can feel busy when several day boats arrive together |
| One of the best viewpoints over Lan Ha Bay | The hike is steep, rocky and not for everyone |
| Fun chance to see wild monkeys | Some monkeys are pushy and may grab belongings |
| Easy to combine with kayaking and a bay cruise | Time on the island is short on most group tours |
| Good swimming in calm summer weather | Weather and sea conditions can change plans |
Who will love it
Beach lovers, active travellers who enjoy a short scramble, photographers looking for a big view and families with older children who can follow the monkey rules.
Who may be disappointed
Travellers expecting a quiet, empty island in high season, people looking for a wildlife sanctuary experience, and anyone who cannot manage rough terrain and only wants to see the viewpoint.
>>> Review Of Popular Cat Ba Tours Activities Guide
Best Time To Visit Monkey Island
The warmer months, roughly from May to September, are the best for swimming, but they are also the busiest, and summer can bring storms that cancel boat trips. Spring and autumn often give a pleasant balance of mild weather and fewer people, while winter is cool and often misty, which is atmospheric for photos but less inviting for the beach.
Time of day matters as much as the season. Morning visits are cooler for the climb and usually quieter. Late afternoon light is beautiful on the cliffs. Middle of the day is the hottest and often the most crowded, when several tour boats can arrive close together.
- Weekdays are generally calmer than weekends and Vietnamese public holidays.
- Check the forecast the day before, as wind and rain affect both the boat ride and the hike.
- Leave a buffer day in your Cat Ba plans in the storm season.
Combining Monkey Island With Lan Ha Bay
Monkey Island works best as one part of a bigger day on the water. A typical plan combines a cruise between limestone islands, kayaking through quiet lagoons, a stop at a floating fish farm and a seafood lunch, then an hour or two on the island at the end. Read about the full Lan Ha Bay tour experience to see how a day on the bay usually flows.
If you prefer a quieter day, ask your operator for a route that visits the island early or late, or one that avoids the busiest lagoons. Smaller boats and private charters give you more flexibility to stay longer on the beach or skip parts of the programme you are less interested in.
>>> Lan Ha Bay Tour Route Avoiding The Crowded Spots
Costs And What To Ask Before You Go
The cost of a Monkey Island visit depends on how you get there. A stop on a group Lan Ha Bay tour is usually included in the tour price. A private boat is paid by the boat, so it becomes better value if you share it with friends. Some arrangements may include a landing or service fee for day visitors. Because these details change, we prefer not to quote old numbers. Instead, ask for a clear quote and check these points.
- Is the Monkey Island stop definitely included, and for how long?
- Are any landing, entrance or sunbed fees extra?
- Are life jackets provided on the boat and for kayaking?
- What time is the return boat, and from which pier?
- What happens if the weather turns bad on the day?
Our essential tips before booking your Cat Ba tour go into more detail on comparing operators and avoiding surprises.
What To Pack For Monkey Island
- Swimsuit, towel and a change of clothes.
- Shoes with good grip for the hike, plus sandals for the beach.
- Sunscreen, hat, sunglasses with a strap and insect repellent.
- At least one litre of water per person.
- A small dry bag that zips closed, to keep valuables safe from water and monkeys.
- Basic first aid supplies, including antiseptic wipes and plasters.
- Cash for drinks or extras, as card payment may not be available.
Our Verdict, Is Monkey Island Cat Ba Worth It
If you are already in Cat Ba, Monkey Island is well worth a few hours. The combination of a real sandy beach, a dramatic viewpoint and wild monkeys is hard to find anywhere else in the bay, and it fits easily into a Lan Ha Bay day. Go with the right expectations: it is a popular stop, not a secret, the monkeys are wild animals, and the hike is a scramble rather than a stroll.
Choose a calm day, go early or late, wear good shoes, keep your snacks out of sight and you are likely to come back with great photos and good stories. If the hike is not for you, the beach and the boat ride alone still make a relaxing half day. And if you have more time in the region, pair the island with a few days of haiphong tours on the mainland to see the port city’s food, history and countryside.
Frequently Asked Questions About Monkey Island Cat Ba
How long should I spend on Monkey Island?
Two to three hours is enough for a swim, a short rest and the viewpoint hike. On a group tour you may have around an hour, which is usually enough for the beach or the climb, but not always both.
Are the monkeys on Monkey Island dangerous?
They are wild and can bite or scratch if they feel threatened or smell food. Do not feed or touch them, keep belongings closed and keep your distance, and most visits pass without any problem.
Is the hike to the top of Monkey Island difficult?
It is short but steep and rocky, with sharp limestone in places. Fit walkers with good shoes usually manage it, but it is not suitable for young children, people with mobility issues or anyone in flip-flops.
Can I visit Monkey Island in winter?
Yes, boats run in most weather, but the air and water are cooler and the sky is often misty. It is fine for walking and photos, less so for swimming.
Can I stay overnight on Monkey Island?
There is a resort on the island with bungalows. Staying overnight lets you enjoy the beach when the day boats have left. Check current availability and reviews before booking.
Plan Your Cat Ba And Lan Ha Bay Trip With Haiphong Adventure
Want help fitting Monkey Island into your Cat Ba plans, choosing a quieter bay route or linking the island with the best of Haiphong city? The Haiphong Adventure team is happy to give honest advice and arrange smooth transfers, boats and guides. Send us your dates, group size and travel style, and we will suggest a plan that fits.
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