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Alien Divers

A professional scuba diving operator in Ao Nang offering guided dives and certification courses for all skill levels.

5.0(248)Koh Phi Phi Tour Pier · 5 min walk
Directions

Plan your visit

Hours
Daily 08:00–20:00
Getting there
Koh Phi Phi Tour Pier
5 min walk

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Details

Full opening hours
Monday08:00–20:00
Tuesday08:00–20:00
Wednesday08:00–20:00
Thursday08:00–20:00
Friday08:00–20:00
Saturday08:00–20:00
Sunday08:00–20:00

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Why go, and how to do it well

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 snorkeling on the same trip, making it a practical choice for mixed-ability groups traveling together.

The atmosphere is consistently described by visitors as professional, organized, and safety-conscious, with instructors who are patient and experienced across all skill levels. Discover Scuba programs 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.

Written by Mac Kiley · Updated Aug 2026

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Around here, on foot

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Experience hints

Visitor favorite

Reviews from Google

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.

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

Highly recommend! Had two fun dives at the local islands. Saw a banded sea krait, barracudas, stingrays, seahorses... Loved our dive leader Khun Dej. Highly recommend Alien Divers and diving at the local islands 😊

A sample of visitor reviews from Google. Read all 248 reviews on Google.

79, 2, Tambon Ao Nang, Amphur Muang, Chang Wat Krabi 81180, Thailand

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Tips for Visiting Activities & Tours

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.

Check Operator Safety Records

For adventure activities (zip-lining, bungee jumping, diving), check recent reviews specifically mentioning equipment condition and safety briefings. Thailand's regulation varies — reputable operators will have insurance and certified guides.

Alien Divers: Frequently Asked Questions

Is Alien Divers worth visiting?

Alien Divers holds a 5.0★ rating from 248 Google reviews, placing it among the highest-rated activities & tours in Krabi.

What are the opening hours of Alien Divers?

Alien Divers is typically open 08:00–20:00 — see the full day-by-day schedule in the location info on this page. Hours can change on Thai public holidays, so check ahead for holiday visits.

When is the best time to visit Alien Divers?

The best months to visit Krabi are November – April, with the most reliable weather. Crowds peak in December – February — going early in the day usually means fewer people. Months to think twice about: May – October (rough Andaman seas).

Where is Alien Divers located?

Alien Divers is at 79, 2, Tambon Ao Nang, Amphur Muang, Chang Wat Krabi 81180, Thailand, in Krabi. Getting around Krabi: Long-tail boats (islands & Railay Beach); Songthaews in Ao Nang.

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