Koh Kood Travel Guide: Thailand’s Best Kept Island Secret

Koh Kood is Thailand’s fourth-largest but least populated island, offering a serene escape characterized by crystal-clear turquoise waters, ancient rainforests, and a distinct lack of mass tourism. To reach this hidden gem, travelers typically take a bus or flight from Bangkok to Trat followed by a high-speed ferry, making it the ultimate destination for those who want to trade neon lights for starlit beaches. Unlike its rowdy neighbors, Koh Kood maintains a quiet charm that rewards the effort it takes to get there.

Why Koh Kood Should Be on Your Radar

For Australian backpackers and global nomads who have already ticked off the "Full Moon Party" or the bustling streets of Phuket, Koh Kood offers something entirely different. It is one of the few places left in Thailand where you can find a stretch of sand all to yourself, even during the peak season. There are no high-rise hotels, no traffic lights, and very few 7-Elevens. Instead, you get winding roads through coconut groves and some of the best snorkeling in the Gulf of Thailand.

While the island feels remote, staying connected is surprisingly easy if you plan ahead. Whether you are navigating a rented scooter via Google Maps or booking your next stay in Cambodia, having reliable data is a necessity. This guide will walk you through everything from the best beaches to the most efficient way to dodge those predatory international roaming fees from home carriers like Telstra or Optus.

Getting to Koh Kood: The Logistics

Most travelers begin their journey in Bangkok. You have two main options: a short flight to Trat (TDX) via Bangkok Airways or a 5-6 hour bus/van ride from Ekkamai Bus Station or Khao San Road. Once you arrive at the mainland pier (Laem Sok), you will need to board a ferry. Companies like Boonsiri High Speed Ferries offer combined bus-and-boat tickets that simplify the process significantly.

Upon arrival at the Ao Salad pier on Koh Kood, shared songthaews (open-air trucks) are usually included in your ferry ticket price to take you to your resort. This is where having a working data connection becomes invaluable. While the ferry staff are helpful, being able to show your hotel’s location on a map ensures you don't end up at the wrong end of the island. Before you leave the mainland, it is wise to see plans for a local eSIM so you aren't relying on spotty pier Wi-Fi.

Connectivity: Local Carriers and Coverage Realities

Koh Kood is rugged, but its telecommunications infrastructure is modern. The island is served by Thailand’s major networks: AIS, TrueMove H, and DTAC.

Network Coverage on the Island

• AIS (5G/4G): Generally considered the gold standard for island coverage. You will find strong signals at popular spots like Klong Chao and Bang Bao.
• TrueMove H (5G): Excellent coverage in the main villages and along the western coastline where most resorts are located.
• DTAC (5G/4G): Reliable in the southern parts of the island and near the piers.

While the beaches have great signal, the dense jungle interior can be a bit of a dead zone. If you are planning a trek to find the hidden yellow-fin tuna trees or remote waterfalls, download your maps offline first. However, for 90% of the island, a Thai Simcard eSIM will keep you connected to 5G speeds, allowing you to upload your sunset photos or make WhatsApp calls without lag.

Skipping the Airport Kiosk and Roaming Fees

Many travelers make the mistake of waiting until they land at Suvarnabhumi Airport to buy a SIM card. The kiosks often have long queues, and the "tourist packages" are sometimes marked up or limited in flexibility. For Australians, the alternative is often worse: paying $5 to $10 per day for international roaming through Telstra or Optus. Over a two-week trip, that is money that could have paid for several Thai massages or a week's worth of Pad Thai.

Thai Simcard provides a seamless alternative. You can purchase an eSIM before you even pack your bags. These are data-only plans, meaning you won't get a local Thai phone number, but in the age of WhatsApp, Messenger, and Grab, a traditional number is rarely needed. You can see plans ranging from 1GB for a quick stopover to massive 50GB packs for long-term digital nomads.

Comparison Table: Connectivity Options

Feature	Thai Simcard eSIM	Australian Roaming	Local Airport SIM
Cost	Low / Budget Friendly	High ($5-$10/day)	Moderate
Setup	Instant via QR Code	Automatic	Physical Swap / Queue
Network	TrueMove H / AIS 5G	Variable Roaming	Single Carrier
Convenience	Ready on arrival	Seamless but expensive	Requires physical store
Data Limits	Up to 50GB	Often capped	Varying

Top Beaches and Activities in Koh Kood

1. Klong Chao Beach

This is the island's "center," though it’s still incredibly quiet. The water is shallow and calm, making it perfect for swimming. It’s also the gateway to Klong Chao Waterfall.

2. Bang Bao Bay

A crescent-shaped bay with clear water and several piers stretching out into the sea. It’s the best spot for snorkeling right off the beach. Many of the boutique resorts here offer kayaks, which you can use to explore the nearby mangroves.

3. Klong Chao Waterfall

A short hike through the jungle leads you to this freshwater oasis. It is a great place to cool off after a morning of exploring. If you are coming from a busy city trip—perhaps you just finished an Ayutthaya Day Trip from Bangkok—the silence here will be a welcome change.

4. Ao Tapao

One of the longest beaches on the island, famous for its old wooden pier and stunning sunset views. It’s a great place to enjoy a sundowner before heading back to your bungalow.

Data Needs for the Modern Traveler

How much data do you actually need for Koh Kood? Since the island lacks high-speed public Wi-Fi in many areas, your eSIM will be doing the heavy lifting.

• Social Media: Uploading high-res videos to TikTok or Instagram can eat through 1-2GB quickly.
• Navigation: Google Maps uses minimal data, but having it active is essential for finding hidden trailheads.
• Communication: WhatsApp calls use about 0.5MB per minute.
• Transport & Food: While Koh Kood doesn't have Grab cars (you'll use scooters or songthaews), you will definitely need Grab for your transit through Bangkok. Having your eSIM ready means you can book a car the moment you clear customs at the airport.

Before purchasing, make sure to check if your device is compatible with eSIM technology. Most iPhones from the XS onwards and recent Samsung/Google Pixel phones are ready to go.

How to Install Your Thai eSIM

Setting up your connection is straightforward. Once you purchase your plan, you will receive a QR code via email.

1. For iPhone: Go to Settings > Cellular > Add eSIM. Scan the QR code and label it as "Travel." Ensure "Data Roaming" is turned on for the new line.
2. For Android: Go to Settings > Network & Internet > SIMs > Add SIM. Select "Download a SIM instead?" and scan the code.

For a more detailed breakdown, you can read our guide on how to set up an eSIM. It is best to do this while you still have Wi-Fi at home or in your Bangkok hotel, such as after visiting one of the best rooftop bars in Bangkok.

Essential Tips for Koh Kood

• Cash is King: There are only a few ATMs on the island, and they occasionally run out of cash or don't accept certain international cards. Carry enough Thai Baht for your entire stay.
• Rent a Scooter: There is no public transport system other than the resort shuttles. Renting a scooter is the only way to see the whole island. Just be careful—the roads are hilly and can be slippery after rain.
• Sandflies: Some beaches on Koh Kood are known for sandflies. Bring coconut oil or a strong repellent to protect your skin.
• Respect the Locals: Koh Kood is a quiet community. Keep noise levels down at night and dress modestly when away from the beach.

The bottom line

Koh Kood is a rare paradise that rewards travelers who value tranquility over nightlife. By securing a Thai Simcard eSIM before you arrive, you bypass the stress of airport kiosks and the exorbitant costs of home-country roaming. With 5G coverage from networks like TrueMove H and AIS, you can enjoy the