Category: Species Guide

Learn about the main game fish around Crystal Bay — Tuna, Sailfish, GT, Mackerel, Grouper and more.(水晶湾常见鱼种图鉴:金枪鱼、旗鱼、GT、马鲛、石斑等。)

  • Coral Trout – The Taste of the Reef

    Coral Trout – The Taste of the Reef

    Coral Trout – The Taste of the Reef

    Few fish represent the beauty and flavor of tropical reefs like the Coral Trout, also known as Pla See Dang or East Star Grouper. Its bright red body dotted with sapphire-blue spots makes it one of the most stunning fish in Crystal Bay — and one of the most prized.

    Coral trout usually inhabit depths of 20–60 meters, hiding among coral ledges and rocky outcrops. They ambush passing baitfish with lightning speed, striking hard and retreating to cover. While most range between 3–8 kg, larger specimens over 10 kg occasionally surprise anglers near deeper reefs.

    Because they dwell close to the reef, quick reflexes are key. Once hooked, you must pull firmly to prevent them from diving back into the rocks. A few seconds’ delay, and the line will likely snap against the coral.

    Beyond their beauty and challenge, coral trout are famous for their culinary value. Their white, tender meat and mild sweetness make them a premium choice for sashimi or steamed Thai-style dishes. Local restaurants often showcase them as “the jewel of the Gulf.”

    Catching a coral trout in Crystal Bay isn’t just luck — it’s a reward for skill, timing, and precision. Their presence also signals healthy coral habitats, rich in life and color.

    In short, the coral trout is more than a fish — it’s a symbol of the reef itself: vibrant, delicate, and deeply rewarding.

  • Mackerel & Barracuda – The Hunters of the Surface

    Mackerel & Barracuda – The Hunters of the Surface

    Mackerel & Barracuda – The Hunters of the Surface

    When the sun glints on the waves and the current begins to run, Crystal Bay’s surface hunters come alive. Spanish mackerel and barracuda rule these moments — fast, sharp, and unpredictable. Their attacks are violent, often cutting through bait schools with flashing teeth.

    Mackerel, called Pla Insee Daeng, travel in packs and strike lures at high speed. They are excellent sport fish and delicious on the grill. Barracuda, on the other hand, are solitary ambushers. Their long, lean bodies and menacing jaws make them the wolves of the sea.

    Both species test reflexes and gear. Wire leaders are essential — one bite through a monofilament line, and it’s gone. Morning and late afternoon are the most active periods, when sunlight angles through the water and baitfish scatter.

    For those who love excitement and speed, chasing mackerel and barracuda offers heart-pounding action — every cast a chance for chaos.

  • Cobia – The Gentle Giant of Crystal Bay

    Cobia – The Gentle Giant of Crystal Bay

    Cobia – The Gentle Giant of Crystal Bay

    If there’s one fish that surprises anglers in Crystal Bay with its strength and elegance, it’s the Cobia — also known as the Sergeant Fish or Pla Chon Talay. Sleek and bronze-colored, cobia grow large and fight hard, often mistaken for small sharks at first sight.

    Most cobia in Crystal Bay range between 10–25 kg, but some reach over 40 kg in deeper water. They patrol reef edges and follow schools of baitfish, especially near floating buoys and drop-offs. Their curious nature often brings them close to boats, where they circle before striking with sudden power.

    Once hooked, cobia are famous for their endurance. They dive, twist, and surge repeatedly — a test of patience and control. Despite their power, they’re known as “gentle giants” because they rarely jump or break line intentionally; they just never give up.

    Their flesh is firm, white, and delicious, making them one of Thailand’s best-eating fish. Locals prize cobia for sashimi, grilling, and spicy Thai curries.

    Spotting a cobia near the surface is always exciting — its dark back cutting through the water like a shadow. When you hook one, you’re not just catching a fish; you’re meeting one of the Gulf’s most respected predators.

    In Crystal Bay, landing a cobia is a badge of honor — proof of skill, patience, and a bit of luck.

  • Diamond Trevally – The Silver Jewel of Crystal Bay

    Diamond Trevally – The Silver Jewel of Crystal Bay

    Diamond Trevally – The Silver Jewel of Crystal Bay

    Among the many species found in Crystal Bay, few shine quite like the Diamond Trevally. With its mirror-like body and sharp angular shape, it looks more like a work of art than a fish. Locally known as Pla Tapien Fon, this species is both rare and stunning, often seen gliding in midwater near reefs and sandy bottoms.

    Typically ranging from 3 to 8 kg, Diamond Trevallies fight hard for their size, making quick runs and sudden turns that test even experienced anglers. They strike spoons, jigs, and small trolling lures with lightning speed, often surprising those targeting tuna.

    Catching one feels special — not just because of its beauty, but because it represents balance in Crystal Bay’s ecosystem. Where you find Diamond Trevally, you often find clean water, healthy reefs, and plenty of baitfish. They are indicators of a thriving sea.

    For those chasing variety, adding a Diamond Trevally to your logbook is like finding a gem beneath the waves.

  • Sailfish – The Speed King of the Gulf

    Sailfish – The Speed King of the Gulf

    Sailfish – The Speed King of the Gulf

    Sailfish are the undisputed sprinters of the ocean. Known for their incredible speed — over 100 km/h — they are a prized catch in Crystal Bay. Sleek, with a long bill and a tall dorsal fin that unfurls like a royal banner, sailfish are both elegant and explosive. When hooked, they leap high above the waves, a blue-and-silver flash against the horizon.

    In Crystal Bay, sailfish are usually found from November to March, often near schools of sardines and anchovies. Early mornings with calm seas and moderate current are best. Anglers troll brightly colored lures or live bait just below the surface. A sudden strike from a sailfish is unmistakable — the reel screams, the line tightens, and the ocean turns into a stage.

    Unlike tuna, sailfish fights are aerial and acrobatic. They jump repeatedly, shaking their bills to throw the hook. That’s why steady tension and careful rod angles are crucial. Most anglers practice catch-and-release to preserve this majestic species, photographing their catch quickly before returning it to the deep.

    Catching a sailfish isn’t just about skill; it’s about timing and respect for the sea. They symbolize freedom, power, and grace — the spirit of Thailand’s open waters.

  • 1. Skipjack vs Yellowfin – How to Tell the Difference

    1. Skipjack vs Yellowfin – How to Tell the Difference

    Skipjack vs Yellowfin – How to Tell the Difference

    At first glance, both skipjack and yellowfin tuna look similar — streamlined bodies, metallic sheen, and endless energy. But experienced anglers in Crystal Bay can tell them apart long before they surface. The key lies in the fins, patterns, and, most importantly, their behavior under pressure.

    Skipjack tuna, locally called Pla Insee Noi, are compact and feisty. They rarely exceed 10–15 kg and usually travel in large surface schools. Their dark horizontal stripes on the belly are an easy giveaway. Yellowfin, or Pla Insee Luang, are the real bruisers — heavier, deeper-bodied, and equipped with long, golden finlets that gleam under sunlight. A 40 kg yellowfin is a powerhouse, capable of pulling line at lightning speed.

    In Crystal Bay, both species feed on sardines and flying fish. Anglers often spot surface boils when skipjack schools chase bait near the top, while yellowfin prefer deeper, cooler layers around 60–80 meters. Choosing lure depth is critical. Shallow-running plugs for skipjack; weighted trolling baits for yellowfin.

    When hooked, their fight styles differ dramatically. Skipjack dash erratically, often in circles, while yellowfin dig down and test every muscle. Many beginners mistake a skipjack’s speed for size — until they meet a true yellowfin.

    Understanding the difference doesn’t just satisfy curiosity; it improves success rates. Knowing which species you’re chasing helps with bait choice, drag setting, and even ice storage planning. Whether you’re after numbers or that one trophy fish, both tuna make Crystal Bay the heartbeat of Thailand’s offshore fishing scene.