Arapaima are not native to Thailand — they come from South America's Amazon basin, where they rank among the largest freshwater fish on earth. Thailand's specialist fishing parks have imported and farmed them legally, creating a network of venues where visiting anglers can target fish that most of the world will never encounter outside of a documentary.
The venues are few, the fish are extraordinary, and the fishing is unlike anything else in Asia. Choosing the right location depends on your budget, your travel plans, and whether you want a full resort experience or a focused day session.
The Short Answer
Gillham's Fishing Resort is the top choice. For Bangkok-based anglers, IT Lake Monsters is the best day-session alternative. Exotic Fishing Thailand rounds out the options for visiting anglers who want variety and flexibility.
Gillham's Fishing Resort, Krabi
Gillham's is a name known to exotic fishing enthusiasts worldwide. Set in a jungle-surrounded valley near Krabi in southern Thailand, the resort has spent years building a stock of arapaima that is regarded as among the finest anywhere in Asia. The fish run large — significantly larger than at most Bangkok pay-lakes — and the quality of guiding, facilities, and overall experience justifies the premium price point.
Gillham's operates on a stay-and-fish model — most visiting anglers book multi-night packages that include accommodation, meals, and guided fishing. Day sessions are possible but you lose significant time to travel from Krabi town. Flying from Bangkok to Krabi is the most time-efficient approach.
The lake itself is set against dramatic scenery, and the experience of watching an arapaima roll at the surface against a backdrop of limestone hills is genuinely memorable. Guides are experienced with visiting international anglers and fluent in the practical requirements of arapaima fishing.
Stock includes other exotic species alongside arapaima — Giant Siamese Carp, Amazon redtail catfish, and others — but arapaima are the headline attraction and the fish that drives most bookings.
IT Lake Monsters, Bangkok
IT Lake Monsters is the strongest Bangkok option for arapaima targeting. Located northeast of the city centre, it is accessible on a day trip and offers a diverse stock that includes both arapaima and Giant Mekong Catfish — making it an efficient choice for anglers who want to cover multiple species in a single session.
The venue has invested in its facilities and the guiding quality has improved significantly in recent years. Swims are well-maintained, and the staff are experienced with international visitors who arrive with specific arapaima targets in mind.
"IT Lake Monsters gives Bangkok-based anglers a genuine arapaima experience without the need to fly south. The fish may not average the size of Gillham's stock, but big specimens are present."
For visiting anglers who fly into Bangkok, want to fish the same day or the morning after arrival, and have limited time, IT Lake Monsters is the practical solution.
Exotic Fishing Thailand
Exotic Fishing Thailand offers a curated experience aimed squarely at visiting international anglers. The venue stocks a wide range of exotic species, and arapaima are part of a multi-species lineup that gives anglers the chance to target several different fish in a single day.
The emphasis here is on accessibility and guided instruction — it is a good choice for first-time exotic fishing visitors who want support through the process. Experienced anglers after the largest possible specimens may find the stock sizes smaller than Gillham's, but for a first encounter with arapaima, the venue delivers reliably.
Some Bangkok Venues Also Hold Arapaima
Beyond the dedicated venues above, a small number of Bangkok pay-lakes that are primarily known for catfish also hold arapaima as part of their mixed stock. These are generally not managed as arapaima specialist venues, and stocking levels vary. If arapaima are your primary target, stick to the venues above rather than chancing a mixed-stock lake where catfish fishing is the main draw.
Choosing the Right Venue
| Priority | Best Choice | |---|---| | Largest specimens, premium experience | Gillham's Fishing Resort | | Day session from Bangkok | IT Lake Monsters | | Guided first arapaima experience | Exotic Fishing Thailand | | Multi-species session with arapaima | IT Lake Monsters or Exotic Fishing Thailand |
Practical Notes
- Gillham's requires advance planning — flights or a long drive to Krabi, accommodation booking, and pre-trip communication with the resort.
- IT Lake Monsters and Exotic Fishing Thailand can be booked with shorter lead times but weekend swims fill quickly.
- Arapaima tackle is specialised. If you are hiring gear at the venue, confirm in advance that heavy arapaima-appropriate rods and reels are available.
- Tipping guides is standard practice at all Thai fishing venues for successful sessions.
For full arapaima biology, tackle choices, fighting techniques, and record fish, see the complete Arapaima species guide.
