Discover the best diving spots in Cambodia and Thailand with our comprehensive guide! Explore coral reefs, wreck dives, eco-friendly Cambodia Tours and Thailand Tours, and top providers for sustainable Cambodia Travel and Thailand Travel. Book your adventure today!
Written by Tony Bùi, with over 20 years of experience in the travel industry, personally guiding and organizing tours for over 100,000 travellers across Southeast Asia. This guide draws from firsthand insights, guest feedback from Legend Travel Group surveys.
Cambodia and Thailand boast some of Southeast Asia’s most diverse diving destinations, from Cambodia’s emerging coral reefs around Koh Rong and Koh Sdach to Thailand’s world-famous sites in the Andaman Sea and Gulf of Thailand. Whether diving in Cambodia’s pristine waters or Thailand’s iconic spots like the Similan Islands and Koh Tao, these countries offer experiences for beginners and advanced divers alike. Exploring these diving spots with guided Cambodia Tours or Thailand Tours immerses you in vibrant marine life, including whale sharks, manta rays, and colorful coral gardens. A blend of adventure and conservation, Cambodia and Thailand diving, facilitated by trusted Cambodia Travel and Thailand Travel providers, is ideal for underwater enthusiasts and eco-conscious travelers. Mastering diving etiquette and safety ensures a respectful and thrilling journey.
This guide blends top diving sites, practical tips, and sustainable Cambodia Travel and Thailand Travel ideas for an unforgettable underwater experience.
Diving in Cambodia and Thailand requires a valid passport (6+ months) and, for most nationalities, a visa (Cambodia: $30–$36; Thailand: visa exemption up to 60 days for many). PADI certification is recommended for advanced dives; beginner courses available on-site ($300–$400). Dive tours cost $50–$150 per day, including gear and boat. Key sites are accessible by speedboat or liveaboard from Sihanoukville (Cambodia) or Phuket/Koh Samui (Thailand). Verify dive conditions and visa requirements via official channels.
Explore Cambodia’s macro marine life (Source: Internet)Koh Rong & Koh Rong Samloem: Crystal-clear waters with coral gardens, seahorses, and nudibranchs; ideal for beginners (visibility 10–20m, depth 5–18m).
Koh Sdach Archipelago: Emerging dive sites with healthy reefs, barracudas, and occasional whale sharks; less crowded (visibility 15–25m).
Koh Tang & Koh Prins: Advanced dives with WWII wrecks and vibrant corals; strong currents for drift diving.
Similan Islands (Andaman Sea): World-class site with manta rays, whale sharks, and granite boulders; liveaboards recommended (visibility 20–40m).
Richelieu Rock: Thailand’s top spot for whale sharks and macro life; part of Surin Islands National Park.
Koh Tao (Gulf of Thailand): Beginner-friendly with shallow reefs, turtles, and dive schools; affordable PADI courses.
Hin Daeng & Hin Muang: Deep pinnacles with pelagic species; advanced divers only (visibility 20–30m).
Cultural etiquette ensures a respectful diving experience during Cambodia Tours and Thailand Tours. Here’s your guide:
Greetings: Offer a “sua sdei” (Cambodia) or “sawasdee” (Thailand) with a wai/sampeah to dive masters and locals.
Dress: Wear rash guards or wetsuits; cover up on boats and islands to respect local modesty.
Behaviour: Avoid touching corals or marine life; maintain neutral buoyancy; no feeding fish; ask permission before photographing locals on islands. A guest shared: “Respecting marine rules made our dives sustainable and enriching.”
Customs: Remove fins before boarding boats; no gloves to prevent coral damage; tipping dive crews ($5–$10) appreciated.
Tip: Say “arkun” (Cambodia) or “khob khun” (Thailand) to crews; use eco-friendly sunscreen (reef-safe); support sustainable Cambodia Travel and Thailand Travel by choosing responsible operators. Tony Bùi notes: “In 20 years guiding, respectful divers thrive in these pristine waters.”
General Tips:
Language: Carry a phrase card for basics; English common at dive centers.
Respect: Follow “no-take” rules in marine parks; support local communities.
Eco-Tip: Use reef-safe sunscreen; join clean-up dives to protect sites.
Glide with Thailand’s majestic rays (Source: Internet)Below is a curated list of tour options for diving in Cambodia and Thailand, designed by Legend Travel Group. Confirm schedules and prices before booking.
Details: Dive Koh Rong (Cambodia) or Koh Tao (Thailand) independently; suitable for certified divers; low to moderate difficulty.
Schedule: Daily; dives 8:00 AM & 2:00 PM; best November–April.
Cost: Day dive $50–$80 (gear included); transport (ferry to Koh Rong $20 round-trip; scooter on Koh Tao $5/day).
Location: Koh Rong (Cambodia), Koh Tao (Thailand).
Eco-Friendly Note: Choose operators with marine conservation programs.
Tip: Book dive centers directly; a guest noted: “Self-guided dives were flexible and affordable.”
Details: 1-day group tour diving Koh Rong’s best sites; includes English-speaking guide, boat, gear, lunch; low difficulty.
Schedule: Daily; departs 7:30 AM from Sihanoukville; returns by 4:00 PM.
Cost: $80–$120/person (includes gear and marine park fees).
Pick-up/Drop-off: Hotels in Sihanoukville.
Eco-Friendly Note: Partners with reef conservation projects.
Tip: Book Cambodia Tours via legendtravelgroup.com; only 10% deposit required until 30 days before departure for peace of mind.
Details: 1-day group tour diving Similan Islands; includes English-speaking guide, speedboat, gear, lunch; moderate difficulty.
Schedule: Daily (November–April); departs 7:00 AM from Phuket; returns by 5:00 PM.
Cost: $100–$150/person (includes national park fees).
Pick-up/Drop-off: Hotels in Phuket.
Eco-Friendly Note: Supports Project AWARE coral restoration.
Tip: Book Thailand Tours via legendtravelgroup.com; flexible payment with 10% deposit.
Details: 5-day liveaboard combining Koh Rong (Cambodia) and Similan Islands (Thailand); includes guides, all meals, gear, and transfers; moderate to advanced difficulty.
Schedule: Weekly departures November–April.
Cost: $800–$1,200/person (all-inclusive).
Pick-up/Drop-off: Airports in Phnom Penh or Phuket.
Eco-Friendly Note: Carbon-offset program and marine clean-ups.
Tip: Book via legendtravelgroup.com; pay only 10% deposit until 30 days before for complete peace of mind.
Self-Guided Exploration: Flexible and budget-friendly for certified divers.
Group Eco-Tours: Affordable, guided, and conservation-focused.
Combo Cambodia & Thailand Tours: Experience diverse marine ecosystems in one trip.
Multi-Day Liveaboards: Ultimate immersion with all-inclusive convenience.
Eco-Friendly Note: All tours support marine conservation and local communities.
Uncover Cambodia’s historical underwater secrets (Source: Internet)Key diving opportunities include:
Whale Shark Season: March–May (Similan Islands, Thailand).
Manta Ray Season: November–April (Koh Rong, Cambodia).
Year-Round Opportunities: Dry season (November–April) for best visibility (20–40m); wet season (June–October) for fewer crowds and macro life.
Dry season (November–April) is peak for calm seas and visibility. Hot season (March–May) offers warm water (29–31°C). Wet season (June–October) has rain but excellent for advanced divers seeking solitude. Morning dives (8:00 AM) avoid afternoon currents.
Online Platforms: Book Cambodia Tours and Thailand Tours via legendtravelgroup.com. Only 10% deposit required until 30 days before departure—keep peace of mind with flexible payments.
Tour Operators: Contact Legend Travel Group for customized diving packages, liveaboards, or PADI courses.
Direct: Dive centers on Koh Rong or Phuket accept walk-ins, but pre-booking ensures spots.
Eco-Tip: Choose operators with Green Fins certification.
Tip: Book early for peak season (November–April); carry dive certification card; confirm visa requirements.
Meet Thailand’s friendly sea turtles (Source: Internet)Pack for a comfortable, sustainable dive trip:
Documents: Passport, dive certification card, travel insurance (covering diving), wallet.
Clothing: Rash guard, board shorts, lightweight cover-up for temples; waterproof bag.
Essentials: Reusable water bottle; high-SPF reef-safe sunscreen; insect repellent; seasickness tablets.
Dive Gear: Mask, snorkel, fins (or rent on-site); dive computer; underwater camera.
Eco Items: Reusable tote for souvenirs; eco-friendly toiletries.
Extras: Small dry bag; first aid kit; GoPro for photos. Tip: Pack light (1 carry-on); rent heavy gear to save space.
Dive Tour Costs
Self-Guided Day Dive: $50–$80 (gear included).
Group Eco-Tour: $80–$150/day.
Liveaboard Multi-Day: $800–$1,200 (5 days, all-inclusive).
PADI Open Water Course: $300–$400 (3–4 days).
Other Costs
Angkor Pass (for Siem Reap add-on): $37–$72.
Marine Park Fees: $10–$20/day (Similan Islands).
Market Snacks: $0.50–$2.
Souvenirs: $1–$20.
Total Daily Cost (Per Person)
Budget: $80–$150 (self-guided dive, meals, transport).
Mid-range: $150–$250 (group tour, accommodation).
Luxury: $250–$500 (liveaboard or private guide). Tip: Budget $80–$500/day; book with Legend Travel Group for 10% deposit only.
Diving Tips: Check certification; dive with a buddy; equalize early; stay hydrated; avoid alcohol before dives.
Etiquette: No touching corals; control buoyancy; respect marine life; tip crew $5–$10.
Access: Fly into Siem Reap (Cambodia) or Phuket (Thailand); ferries to islands.
Schedules: Dives 8:00 AM & 2:00 PM; liveaboards November–April.
Sustainability: Choose Green Fins operators; join reef clean-ups.
Navigation: Use dive center maps; GPS for remote sites.
Weather: Dry season best for visibility; wet season for macro life.
Safety Note: Dive within limits; carry dive insurance; obey red flags on beaches.
What are the best diving spots? Koh Rong (Cambodia), Similan Islands and Koh Tao (Thailand).
Do I need certification? Yes for most dives; beginner courses available on-site.
How much do dives cost? $50–$150/day; liveaboards $800+.
When is the best time to dive? November–April for visibility; year-round possible.
Are the sites eco-friendly? Yes with responsible operators like Legend Travel Group.
How do I book? Via legendtravelgroup.com; 10% deposit only.
Enhance your diving journey with eco-conscious tours from Legend Travel Group:
Cambodia Diving Eco-Tour ($80–$120/person, 1 day): Koh Rong reefs with conservation focus.
Thailand Diving Eco-Tour ($100–$150/person, 1 day): Similan Islands with Project AWARE.
Cambodia & Thailand Diving Explorer ($800–$1,500/person, 5 days): Liveaboard combining both countries.
Prices include guides, gear, and fees; 10% deposit until 30 days before departure for peace of mind. Explore options at legendtravelgroup.com or contact sales@legendtravelgroup.com / WhatsApp (+84825862222) for your Cambodia Travel and Thailand Travel plans.
Exploring Cambodia and Thailand Diving Spots with respect for marine life and local customs unlocks a breathtaking underwater adventure. With dive costs from $50–$1,500, eco-friendly Cambodia Tours and Thailand Tours, and sites like Koh Rong and Similan Islands, this trip offers thrill and conservation. Book with Legend Travel Group for sustainable Cambodia Travel and Thailand Travel—only 10% deposit required until 30 days before departure, keeping your peace of mind. Dive into the adventure today at legendtravelgroup.com!
Sources: By Legend Travel Group
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