Skip to content
Go to Dive Champ home pageDive Champ LogoDive Champ

東霸 East Dam

The High Island Reservoir, located 18km from Sai Kung Public Pier in Hong Kong, is the largest reservoir in the country. Its East Dam consists of more than 2500 anchor-shaped concrete structures. With a depth ranging from 11-13 meters, this dive site offers exciting encounters with nudibranchs, lobsters, and even barracudas. Recommended for advanced divers, this site on Sai Kung Man Yee Road, Sai Kung District, New Territories, China, provides a visibility of 5 meters and reaches a maximum depth of 10 meters. Enjoy exploring the underwater wonders of this picturesque location. Dive in now!

Diving Conditions Score for 東霸 East Dam

8.4
Very Good

Very good diving conditions!
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for 東霸 East Dam

Depth

10m

Visibility

5m

Experience Level

advanced

Weather Conditions for 東霸 East Dam

Wave Height

0.52m

Wind Speed

12.6 m/s

Water Temp

27.1°C

Visibility

22.06km

Cloud Cover

13%

Wave Period

4.2s

Air Temperature

27.9°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for 東霸 East Dam
Alpha

Dive Score Chart for 東霸 East Dam

Best time to dive: 15:00 with score 7.8013650205761325/10. Water conditions: Waves 0.46m, Wind 10.7 m/s.Best night dive time: 0:00 with score 7.384966666666667/10.

Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.

Sunrise at 東霸 East Dam: 06:00
Sunset at 東霸 East Dam: 18:00

Optimal diving conditions at 東霸 East Dam are affected by daylight hours. Sunrise occurs at 06:00 and sunset at 18:00, which impacts visibility and water temperature for scuba diving and snorkeling.

🌞
Best Overall
15:00

Score: 7.8/10
Waves: 0.46m (4.05s), Wind: 10.7 m/s

🌞
Safest Overall
16:00

Score: 7.8/10
Waves: 0.46m (4.1s), Wind: 13.2 m/s

🌙
Best Night
0:00

Score: 7.4/10
Waves: 0.36m, Wind: 9.9 m/s

Seasonal Analysis for 東霸 East Dam
Alpha

Historical patterns and best seasons for diving at 東霸 East Dam

The dive score combines all factors to rate overall diving conditions throughout the year. Higher scores indicate better diving conditions.

Monthly Dive Score Analysis - Seasonal Diving Conditions

Higher values indicate better diving conditions

Seasonal DiveScore Chart

This chart displays monthly diveScore data throughout the year, showing seasonal patterns. The data is presented as a bar chart with an overlaid line graph.Dive scores range from 1 to 10, with 10 being optimal conditions.

Higher values indicate better diving conditions

Best Season for 東霸 East Dam

Winter

Avg. Score: 10.0/10

Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.

Best Months for 東霸 East Dam

January
Score: 10.0
February
Score: 10.0
March
Score: 10.0

Ideal Conditions for 東霸 East Dam

Water Temp

Thermometer Emoji

22.2°C / 72.0°F

June

Visibility

Telescope Emoji

20.1m / 65.9ft

October

Wave Height

Wave Emoji

0.2m / 0.7ft

January

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for 東霸 East Dam

東霸 East Dam shows typical northern hemisphere patterns with June being the warmest month (22.2°C) and December the coldest (18.2°C). The calmest conditions typically occur in January with average wave heights of 0.2m and wave periods of 8.0s. The most comfortable wave conditions are in January with a low wave steepness ratio, creating gentler swells. January offers the longest wave periods (8.0s), creating more comfortable and predictable conditions for boat entries and exits. Ocean currents are slowest in January (0.5m/s) and strongest in January (0.5m/s). January is usually the driest month with 0.0mm of precipitation. For beginners, the best time to visit would be during January to March, when ocean conditions are calmer with long-period waves and currents are typically weaker. Experienced divers might enjoy the challenges and potentially better visibility during the shoulder seasons, with moderate currents that can improve marine life encounters.

Scoring Legend:
9-10 (Excellent)
7-8 (Good)
5-6 (Average)
3-4 (Poor)
1-2 (Dangerous)

Last updated: 1 min. ago - Jun 22, 2026

Note: This dive site is not a verified dive site. Please dive with caution. This dive site might have incorrect information by the community.

9 Dive sites near 東霸 East Dam in

Got feedback?

Help us improve this dive site by giving us feedback.