# Siam Scuba > PADI 5-Star dive center on Koh Tao, Thailand. Scuba diving courses (beginner to > instructor), fun diving for certified divers, and try-diving experiences - run > from two custom dive boats with a max 4:1 student-to-instructor ratio and > flexible daily schedules. Booking and enquiries are handled over WhatsApp. Languages: English (default), Hebrew (/he), Spanish (/es). Location: Koh Tao, Surat Thani, Thailand. Main dive sites include Chumphon Pinnacle, Sail Rock, and Twins. ## Key pages - [Home](https://siamscuba.com/): Dive center overview, courses, boats, and reviews. - [Dive sites](https://siamscuba.com/dive-sites): Guides to Koh Tao's dive sites. - [Blog](https://siamscuba.com/blog): Diving guides and Koh Tao travel articles. - [Fun dive booking](https://siamscuba.com/fun-dive-booking): Book fun dives for certified divers. ## Courses - [Discover Scuba Diving](https://siamscuba.com/discover-scuba): One-day intro dive, no experience needed. - [Open Water Diver](https://siamscuba.com/open-water): PADI entry-level certification. - [Advanced Open Water](https://siamscuba.com/advanced-open-water): 5 adventure dives, depth to 30m. - [Rescue Diver](https://siamscuba.com/rescue-diver): Emergency response and rescue skills. - [Divemaster](https://siamscuba.com/divemaster): Professional-level internship. - [IDC / Instructor](https://siamscuba.com/idc): PADI Instructor Development Course. - [Specialties](https://siamscuba.com/deep-diving): Deep, Wreck, Night, Sidemount, DPV, Buoyancy, and more. ## Landing pages - [Discover Scuba Diving](https://siamscuba.com/discover-scuba-diving) - [Open Water Course](https://siamscuba.com/open-water-course) - [Fun Dives](https://siamscuba.com/fun-dives) ## Contact - WhatsApp: primary booking and enquiry channel (see site for current number). - Website: https://siamscuba.com