17/06/2026
🗓️ 6/19 (Fri), 6/21 (Sun), 9/6 (Sun)
⛲ Incredible Boat Dive in Southern Yilan
✅ Dive instructors and dive shops are welcome to bring groups. Details can be discussed separately. ✅
🤿 3 Dives
🌅 Dragon Boat Festival Special
Join the Turtle Island trip on 🗓️ 6/20 (Sat) together with a secret boat-diving trip to Su'ao/Dong'ao on 🗓️ 6/19 (Fri), and enjoy a special discount! ✅
🌟 Do you enjoy being surrounded by fish and experiencing the harmony between marine life and underwater landscapes? Would you like to explore dramatically different dive environments in a single day in Northern Taiwan, including isolated reefs, shipwrecks, boulder fields, and soft coral forests?
The waters around Su'ao and Dong'ao in Yilan offer numerous unique reefs and artificial reefs covered in vibrant soft corals and teeming with marine life. Over many years of exploration and survey work, Hi 5 Diving has developed and mapped 11 outstanding recreational dive sites. We invite you to discover them with us.
🤿 Featured Dive Sites (Choose 3 out of 11)
The main dive sites of Su'ao and Dong'ao, listed from north to south:
𖢻 Glassfish Tunnel
🥦 Giant Cauliflower Valley
🪷 Lotus Reef
☁️ Half Float Reef
🫧 Wonderland
⛴ Chu Yung Wreck
🏢 35-Meter Steel Cage wreck
🦩 Pink Bird Forest
🔃 Up & Down Wrecks
🪨➡️ Black Nose Rock East
🪨⬇️ Black Nose Rock South
✅ Actual dive sites will be choosed according to weather conditions on the day. ✅
🛳️ Boat Diving Package
🤿 3 Dives
✅ Nitrox Included
✅ Generous snacks, light meals, and beverages 🥤🥗🍗
⚓ Captain with over 20 years of experience in Yilan waters.
🤿 Dive Guide with 12 years of dedicated exploration in Yilan waters to discover unique features, the most scenic dive routes, and the best spots for underwater Instagram photo. 📸
🎉 Bonus Post-Dive Activities
All participants are welcome to join:
🆔 Marine Life Identification Workshop
📸 Underwater Photography & Post-Processing Guidance
💬 Photo Sharing and Discussion Session
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📌 Meeting Point
Please first arrive near the Nansing Inspection Station of the Coast Guard Administration at Nanfang'ao Fishing Harbor:
No. 156, Kuagang Road, Su'ao Township, Yilan County
Coordinates for the dive boat's exact docking location will be provided on the day of the event.
📍 https://goo.gl/maps/1C8gZLuPkiknDE8XA
✅ Registration link:
https://forms.gle/ZszZFzkoQd11edTFA
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📞 Contact Information
Yulin Chang
📱 Mobile: +886 910 925 181
LINE ID: yulinchang0721
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🤿 About the Dive Sites
Please refer to the accompanying photos and videos for detailed introductions to Su'ao and Dong'ao's premier dive sites. (English Version will be provided later)
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🗓️ Trip Details
Before Departure
📍 Confirm your equipment checklist
📍 Set your alarm clock.
📍 Get a good night's sleep.
📍 No alcohol before diving.
✅ If you need transportation advice, coordination, or assistance, feel free to contact us.
Meeting & Departure Times
Monday to Saturday
📍 Meet at 7:00 AM
🚤 Boat departs at 7:30 AM
Sunday
📍 Meet at 6:30 AM
🚤 Boat departs at 7:00 AM
Before Boarding
• Submit your ID card for verification (Returned immediately afterward)
• Stow equipment according to assigned groups
• Assemble and check dive gear
Diving Activities
• Depart by dive boat
• 3 dives, maximum depth 35 meters
• Lunch served after the second dive
✅ We will provide snacks, light meals, and beverages throughout the day.
Return Trip
Participants may shower, change clothes, or rest in the cabin during the return journey.
Expected return to Nanfang'ao before 2:30 PM.
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🤿 Diver Requirements
Before the event date, please ensure you meet the following requirements:
📍 Advanced Open Water certification or equivalent
📍 Good buoyancy control skills
📍 Willingness to strictly follow the dive guide's instructions 🔥🔥🔥
📍 Willingness to learn current-management techniques 🔥🔥🔥
✅ We are happy to share practical techniques for dealing with currents and making dives more enjoyable.
✅ If you would like to improve any diving skills, feel free to arrange training sessions with us before the event.
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🚨 Important Notes
⚠️ Required Equipment:
• Dive computer
• Surface marker buoy (SMB) 🎈
• Backup second-stage regulator or redundant air source
• Dive light 🔦
(Rental equipment available.)
✅ Recommended items:
• Towel
• Water bottle
• Windbreaker
• Reef hook
⚠️ Please bring a photo ID (national ID card, health insurance card, or driver's license) for Coast Guard inspection.
Buddy Procedures
☑ Stay within arm's reach of your buddy whenever possible.
☑ If paired with a temporary buddy:
• Note their distinctive gear
• Know the location of their alternate air source
• Confirm inflator operation and remaining tank pressure together
Nitrox Divers
🤿 Verify oxygen percentage and maximum operating depth before diving.
✅ Oxygen analyzer provided.
Typical oxygen concentration: approximately 32%.
During the Dive
☑ Know your assigned dive guide and remain within half the visibility distance whenever possible.
☑ Keep your dive light ready for communication.
🤿 Ascend and descend using the anchor line; do not leave the line without authorization.
☑ If deploying an SMB for ascent, coordinate closely with the group and ascend together.
☑ Stay within the depth limits allowed by your certification level and gas mixture:
• Advanced certification: maximum 30 meters
• Deep Diver certification: maximum 40 meters
☑ Single-tank divers must notify the dive guide when tank pressure reaches:
• 130 bar
• 70 bar
🤿 Report any discomfort or concerns to the dive guide immediately.
⚠️ Participants who engage in unsafe behavior, including separating from the group without authorization or diving under the influence of alcohol, may be removed from the activity.
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💲 Cancellation Policy
If you cancel after registration:
• More than one month before the event: 50% refund of the event fee
• Within one month of the event: only cylinder fees will be refunded
However, if you find a qualified replacement diver, a full refund will be issued (minus any bank transfer fees).
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About Our Yilan Dive Site Exploration
Since my first boat dive in Yilan in 2014, I have been captivated by the remarkably diverse underwater landscapes around Turtle Island, Su'ao, Dong'ao, and Shicheng. Independent reefs, shipwrecks, boulder fields, and soft coral forests each offer unique diving experiences.
To thoroughly survey these waters, I have repeatedly chartered boats at my own expense during Northern Taiwan's relatively short diving season to explore unknown sites.
Since 2014, I have surveyed:
• 12 boat-diving sites around Turtle Island
• More than 30 boat-diving sites around Su'ao and Dong'ao, including 11 sites particularly suitable for recreational divers
• Approximately 10 boat-diving sites around Shicheng
Many of the most spectacular locations were discovered and developed exclusively by our team.
Because Yilan's ocean conditions can vary significantly, a dive site often requires 20–30 dives to fully understand the best routes, conditions, and photography opportunities. Capturing truly iconic images often requires the perfect combination of timing, conditions, and luck.
Recently, my perfectionist side kicked in again, and I've devoted considerable effort to creating detailed site guides with photos and descriptions. Guides for Turtle Island, Su'ao, and Dong'ao secret dive sites are now complete.
Come discover the incredible dive sites of Northern Taiwan—places beyond what you may have imagined! ❗
