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Yap Caverns

Welcome to Yap, the southernmost tip of our beautiful island! Here, divers will discover an abundance of marine life and captivating underwater landscapes. Swim through vibrant reefs teeming with creatures both large and small, and experience the incredible diversity that awaits you.

Yap Caverns amphitheater is a standout site for macro photography enthusiasts. At every depth, you'll encounter an array of fascinating subjects such as porcelain crabs, moyers dragonettes, nudibranch, leaf fish, scorpion fish, antheas, flame angels, cleaner shrimp, ghost shrimp, and ghost pipe fish. Capture these mesmerizing creatures on camera, whether you prefer wide-angle shots or close-up macros.

When planning your dive, choose between a static or drift dive during slack tide, allowing for approximately 90 minutes of bottom time. Explore swim-through caverns and walls as you descend to depths ranging from 3m to 30m. Marvel at rock pinnacles set against a backdrop of white sand. Keep an eye out for incredible wildlife encounters including schools of fish, reef sharks, macro subjects, moray eels, reef fish, and large pelagic fish. Don't miss the chance to witness cleaning stations in action and observe the magnificent bump head parrot fish.

With visibility ranging from 12m to 30m, your underwater exploration will be crystal clear and breathtaking. Enjoy the tranquil currents that usually grace our dive sites, ensuring a smooth and undisturbed experience.

Yap in the Federated States of Micronesia is the perfect destination for divers of all skill levels. Whether you're a beginner or an advanced diver, the wonders of our underwater world are accessible to you. Our dive site is conveniently located near Garim and Gilmaan, offering convenient access for enthusiasts.

Experience the best that Yap has to offer and embark on an unforgettable diving adventure. Prepare to be amazed by the wonders that await beneath the surface.

Diving Conditions Score for Yap Caverns

6.4
Above Average

Decent conditions, proceed with caution.
The score is based on a calculation of the current weather and sea conditions.

Dive Site Overview for Yap Caverns

Depth

22m

Visibility

27m

Experience Level

beginner
advanced

Weather Conditions for Yap Caverns

Wave Height

1.1m

Wind Speed

22.9 m/s

Water Temp

30.1°C

Visibility

3.14km

Cloud Cover

100%

Wave Period

6.15s

Air Temperature

26.8°C

Precipitation

4.1 mm

Detailed 7-Day Diving Forecast for Yap Caverns
Alpha

Dive Score Chart for Yap Caverns

Best time to dive: 8:00 with score 6.873333333333334/10. Water conditions: Waves 1.1m, Wind 20.3 m/s.Best night dive time: 3:00 with score 5.8933333333333335/10.

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

Sunrise at Yap Caverns: 06:00
Sunset at Yap Caverns: 18:00

Optimal diving conditions at Yap Caverns 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
8:00

Score: 6.9/10
Waves: 1.1m (6.1s), Wind: 20.3 m/s

🌙
Best Night
3:00

Score: 5.9/10
Waves: 1.04m, Wind: 18.3 m/s

Seasonal Analysis for Yap Caverns
Alpha

Historical patterns and best seasons for diving at Yap Caverns

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 Yap Caverns

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 Yap Caverns

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

Ideal Conditions for Yap Caverns

Water Temp

Thermometer Emoji

27.2°C / 81.0°F

July

Visibility

Telescope Emoji

9.1m / 29.9ft

January

Wave Height

Wave Emoji

2.3m / 7.5ft

August

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Yap Caverns

Yap Caverns shows typical northern hemisphere patterns with June being the warmest month (27.8°C) and December the coldest (23.8°C). The calmest conditions typically occur in August with average wave heights of 2.3m and wave periods of 8.0s. The most comfortable wave conditions are in August 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 1.5mm of precipitation. For beginners, the best time to visit would be during August to October, 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 20, 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.

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