Siam Adventure World
Based at Royal Phuket Marina on Thepkasattri Road, this tour and travel agency specialises in full-day island excursions departing from Phuket and the surrounding region. Popular itineraries include early-morning departures to Phi Phi Islands, Similan Islands, Surin Islands, and James Bond Island, with guides leading small groups to snorkelling spots, wildlife encounters, and scenic coastal areas throughout the day. Visitor experiences consistently highlight the quality of the guides, with named staff such as Don, Panda, and Lucas receiving particular praise for their knowledge, humour, and attentiveness on the water. Lunches are included on at least some tours and have drawn positive feedback. The early-bird departure format — with some tours starting as early as 5am — is a deliberate choice that allows groups to reach popular islands before the crowds arrive, a detail that reviewers note makes a meaningful difference to the experience. Solo travellers and groups alike report feeling well looked after throughout. Good to know: Several tours depart from Khao Lak rather than the marina address, so confirm your specific pick-up point and departure time when booking. Early-bird tours require a pre-dawn start, so factor this into accommodation planning. It is advisable to book in advance, particularly during the high season between November and April, as places on popular routes fill quickly. As most activities take place on and in the water, bring reef-safe sunscreen, a change of clothes, and any seasickness medication if needed.
Experience hints
Pair your visit. After Siam Adventure World, round out your day in Phuket with contrasting stops nearby.
Visitor Reviews
🌟🌟🌟🌟🌟 I booked the Similan Islands tour through GetYourGuide and did the trip solo this time as my partner was unwell, and honestly it ended up being one of the best day tours I’ve done in Thailand 🌴 Got a better price using discoun code TRAVELWIZZARD5 too 👌🏽 From the very start, everything was extremely well organised. We were welcomed with a proper breakfast before setting off, which immediately set a good tone for the day ☕️🥐 Our tour guide Emma was excellent throughout. She was friendly, calm, knowledgeable and really on top of keeping the day running smoothly without it ever feeling rushed. The Similan Islands themselves are absolutely unreal 🤯 I’ve travelled a lot, but the water clarity here is on another level and easily the clearest water I’ve ever seen. Snorkelling was a huge highlight, with incredible up close GoPro footage of sea turtles and schools of fish in crystal clear conditions 🐢🐠 Visibility was amazing and the snorkelling spots chosen felt well planned rather than overcrowded. Lunch was a buffet and for a group tour it was surprisingly good with plenty of choice 🍽️ Water and soft drinks were available all day free of charge, which makes a big difference on a long and hot island hopping day 💦 The breakfast before departure was also a really nice touch. The speedboat journey was around 1 hour 20 minutes each way 🚤 On the way out it was smooth, but the return was quite choppy due to the sea conditions. It was absolutely fine for most people, but if you have a serious back injury or ongoing back issues it is something worth keeping in mind. I mention it purely to be helpful for anyone planning ahead. Overall this was a genuinely outstanding experience from start to finish ⭐️ I’ll be doing the exact same tour again in two weeks with my partner as she was ill this morning and couldn’t make it unfortunately. If you’re considering the Similan Islands, this tour is absolutely worth it.
A 10/10 experience with Siam Adventure world this week. We did the early bird visit to Phi Phi Island , this was a little pricier than the other tours but was totally worth it. A 5am start meant to were able to enjoy each location without the crowds and back before 4pm to enjoy the evening too A full breakfast with hot and cold options provided at the Pier, quality speedboats with a small group. Toilet on board. Clean boat and amazing service from the deckhands. The tour provided unlimited drinks and snacks throughout the whole day, with fresh fruit, traditional delicacies with even tea and coffee on board! Quality snorkelling equipment, life jackets and even rain coats were provided.we had enough time to enjoy each spot and even had the option to hike up to the view point at Koh Phi Phi Don- which was worth the extra steps in the heat. The lunch location had a spectacular view however while the food options were plenty, the quality wasn’t great and lacked flavour. Food was halal 🙌This was one of the best tours I have been on and this was with thanks to our incredible hosts Denny and Roberto! Two incredible gents who made this day flawless and the staff on board were brilliant , ensuring not just our safety but a fun experience Thank you Denny and Roberto for an unforgettable experience ! From Halem and Hab ⭐️🇧🇩
We did the early bird tour to Similan island from Khao Lak. Everything was perfect. From communications to reserve, pick up, breakfast and the tour itself. Our guide Don was really good, funny, clear with instructions and was managing time very well. The 3 snorkeling spots were really really nice, the water is sooo clear. Don't expect to be alone there. There will be many people, but as most people stay close to the boat, it's easy to get away from the crowd. It's way better than the tours who are not early bird ( we did that last time and it's amazingly crowded). So I really recommend that tour.
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 Phuket
Patong Beach
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Mu Ko Similan National Park
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Ko Racha Yai
No cars exist on this tiny island with a number of resorts pitched at all budgets & sandy beaches.
Ko Yao Yai
Large inhabited island in the Ko Yao Archipelago known for its beaches & dive sites.
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Location Info
Visitor Information
Best time to visit
November – April
Avoid: June – September (rough seas)
Rainy season
May – October
Avg. temperature
24°C – 33°C(75°F – 91°F)
Crowds
Peak: December – January
Getting there
Phuket International Airport (HKT) receives direct international flights. Ferries connect from Krabi and Koh Phi Phi.
Getting around
- •Grab (widely available)
- •Tuk-tuks (fixed routes, negotiate)
- •Motorbike rental
- •Airport bus to Phuket Town
- •Ferry & speedboat to nearby islands