Whale Sharks Near Koh Samui - Dive with Gentle Giants at Waterspeak Scuba

Whale sharks are the ocean’s largest fish and among its most awe-inspiring creatures. These gentle giants, reaching over 10 meters in length, can be spotted gliding gracefully through the waters around Koh Samui throughout the year. Encountering one up close is a truly unforgettable experience. If seeing a whale shark is on your bucket list, Waterspeak Scuba offers the perfect way to make it happen.

When and Where to See Whale Sharks Near Koh Samui

Whale sharks are spotted year-round in the Gulf of Thailand, but the best chances to encounter them around Koh Samui are typically between March and September, with the peak season often falling between April and July. During this time, plankton blooms attract these gentle giants to the area, increasing the likelihood of sightings at deeper offshore sites. However, as wild animals, whale shark appearances cannot be guaranteed and depend on natural factors beyond our control.

There are many dive sites around Koh Samui where whale sharks can be spotted, but the following are the key sites known for reliable encounters:

• Sail Rock – The Gulf’s top dive destination, renowned for its towering walls, vertical swim-through chimney, and rich marine biodiversity. Sail Rock is the most reliable spot near Koh Samui for encountering whale sharks.

• Chumphon Pinnacle – A top deep dive site famous for attracting large pelagic species such as barracuda and trevally, with occasional whale shark sightings adding to its appeal.

• Southwest Pinnacle – Renowned for its vibrant corals and large schools of fish, this dive site is another excellent location where whale sharks are occasionally spotted.

Waterspeak Scuba: Two Ways to Dive with Whale Sharks

At Waterspeak Scuba, we offer two distinct dive experiences to suit your style:

1. Premium Semi-Private 2-Dive Trip (Certified Divers Only)

Join a small group of like-minded divers aboard a spacious, fully equipped dive boat. This Premium Semi-private trip runs every Thursday and is limited to 10 certified divers, ensuring a focused, high-quality experience without beginner briefings or delays.

Our expert guides take you to some of the region’s best advanced dive sites - including Sail Rock, Southwest Pinnacle, Chumphon Pinnacle, Shark Island, and Samran Pinnacle - giving you the best possible chance to spot whale sharks and other impressive ocean wildlife.

2. Private Scuba Diving Charter (All Levels Welcome)

Prefer a custom adventure? Our private scuba charters are perfect for couples, families, or small groups. Experienced divers and beginners alike will enjoy a day tailored to their skill level and preferences.

Private charters allow you to:

• Dive or snorkel at your own pace

• Choose your preferred sites (weather permitting)

• Enjoy personalized attention from your dive guide or instructor

• Combine diving with island hopping or snorkeling excursions

This is a great option for mixed-experience groups or anyone wanting a flexible, exclusive day on the water.

What It’s Like to Dive with a Whale Shark

Seeing a whale shark underwater is an unforgettable moment. As it glides past with slow, deliberate movements, its massive spotted body and gentle eyes create a sense of awe. Despite their size, whale sharks are peaceful creatures that pose no danger to humans. They often cruise calmly past divers and snorkelers, making for amazing photo and video opportunities.

At Waterspeak Scuba, we prioritize responsible diving practices to ensure every encounter is respectful and sustainable. Our instructors and guides provide thorough briefings on how to interact safely and responsibly with marine wildlife, protecting both you and the ocean’s inhabitants.

Book Your Whale Shark Dive Adventure

Waterspeak Scuba is dedicated to providing personalized, professional, and eco-conscious dive experiences in the Gulf of Thailand. Choose from a premium semi-private dive trip or a fully customized private charter for a safe, memorable, and unique underwater adventure with us.

Contact us to book your trip or ask any questions - and start planning the dive of a lifetime near Koh Samui.