Alien Divers
Based in Ao Nang, Krabi, Alien Divers operates as a full-service scuba diving and tour agency catering to everyone from first-time divers to seasoned underwater explorers. The operation runs guided day trips to nearby islands and local dive sites, where visitors have encountered an impressive range of marine life including stingrays, barracudas, seahorses, banded sea kraits, lionfish, and eels. Family groups can combine diving and snorkelling on the same trip, making it a practical choice for mixed-ability groups travelling together. The atmosphere is consistently described by visitors as professional, organised, and safety-conscious, with instructors who are patient and experienced across all skill levels. Discover Scuba programmes give complete beginners a structured introduction to diving in open water, while more experienced divers can join fun dives at the surrounding island sites. The team speaks English and guides are well-regarded by name in visitor feedback, suggesting a personal and attentive approach to each group. The shop operates daily from 8:00 AM to 8:00 PM, offering flexibility for booking on arrival or planning ahead. Checking the website at aliendivers.com before visiting is worthwhile for current course schedules, trip availability, and any advance booking requirements. Certified divers should bring their dive certification cards, and all visitors should pack sun protection, as time on the water between dive sites can involve significant sun exposure.
Experience hints
Pair your visit. After Alien Divers, round out your day in Krabi with contrasting stops nearby.
Visitor Reviews
We had a wonderful time during our discover scuba dive with Garry and Nathan! We felt very safe and protected the entire time. It was our first time scuba diving, and we definitely want to go again! We saw a lot of beautiful fish and coral. Krabi and its surrounding islands seem like a great diving spot. The price was also very fair.
I had an incredible experience diving with alien diver, Ksundek . From start to finish, everything was perfectly organized and professional. The instructors were highly experienced, patient, and genuinely passionate about diving, which made me feel completely safe and confident underwater & take lots of photos
Great family day today with Alien divers to local islands. We did a mix of diving & snorkeling which was great. Saw rays, barracuda, lion fish, seahorses, banded seakrait, eels, hundreds of different fish, colourful coral, anemones, urchins. Great crew & would 100% recommend. Thanks
Location Info
79, 2, Tambon Ao Nang, Amphur Muang, Chang Wat Krabi 81180, Thailand+66 97 176 8428aliendivers.com/Tips for Visiting Activities & Tours
Vet Elephant Sanctuaries
Only visit sanctuaries that prohibit riding, use no chains or bullhooks, and let elephants roam freely. Elephant Nature Park in Chiang Mai set the standard. If a place offers painting shows or circus tricks, walk away.
Book Through Klook or GetYourGuide
These platforms offer instant confirmation, free cancellation on most activities, and prices that are often lower than walk-up rates. Compare with local agencies for multi-day trips where negotiation might save more.
Do Outdoor Activities in the Morning
Heat and humidity peak from noon to 3 PM. Schedule jungle treks, cycling tours, and outdoor cooking classes for early morning. Water activities are more flexible since you're in and out of the sea.
Also Popular in Krabi
Ko Lanta
Coral-fringed beaches draw scuba divers to this lush island district with a national park.
Ko Phi Phi Don
Largest island in the Ko Phi Phi archipelago, featuring scenic inlets, beach resorts & restaurants.

Wat Tham Suea
Expansive temple complex in lush jungle surrounds known for its gold Buddha statue & cave network.
Kodam Kitchen branch 1
Highly regarded budget Thai restaurant in Ao Nang, open daily, known for curries, seafood, and Pad Thai.
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Location Info
Visitor Information
Best time to visit
November – April
Avoid: June – September (rough Andaman seas)
Rainy season
May – October
Avg. temperature
23°C – 33°C(73°F – 91°F)
Crowds
Peak: December – February
Getting there
Krabi Airport (KBV) has direct flights from Bangkok (1.5 hrs). Ferries connect to Koh Lanta, Koh Phi Phi, and Phuket. Bus/minivan from Phuket takes ~3 hrs.
Getting around
- •Long-tail boats (islands & Railay Beach)
- •Songthaews in Ao Nang
- •Grab (limited, mainly Ao Nang)
- •Motorbike rental