Grotte à Balou
Just a short 5-minute drive from the picturesque bay of Saint Jean de Luz, this dive site is perfect for beginners. With a maximum depth of 18 meters, it consists of a rocky plateau and a sandy beach, offering a diverse and captivating underwater experience.
Explore the depths and meet a variety of fascinating marine life, including torpedo and stingrays known as "raies," as well as schools of fish that inhabit the plateau. Amongst the rocky formations, you'll encounter a vibrant array of underwater creatures such as octopus, scorpion fish, nudibranchs, sea urchins, and starfish.
Situated in France, this dive spot is conveniently located on Rue du Chavalier van Bree, in the enchanting city of Saint-Jean-de-Luz, Bayonne, Pyrénées-Atlantiques. With its crystal-clear waters and visibility of 12 meters, it guarantees an unforgettable diving experience for beginners.
Immerse yourself in the underwater wonders of this beginner-friendly dive site in France, just minutes away from the breathtaking bay of Saint Jean de Luz.
Explore the depths and meet a variety of fascinating marine life, including torpedo and stingrays known as "raies," as well as schools of fish that inhabit the plateau. Amongst the rocky formations, you'll encounter a vibrant array of underwater creatures such as octopus, scorpion fish, nudibranchs, sea urchins, and starfish.
Situated in France, this dive spot is conveniently located on Rue du Chavalier van Bree, in the enchanting city of Saint-Jean-de-Luz, Bayonne, Pyrénées-Atlantiques. With its crystal-clear waters and visibility of 12 meters, it guarantees an unforgettable diving experience for beginners.
Immerse yourself in the underwater wonders of this beginner-friendly dive site in France, just minutes away from the breathtaking bay of Saint Jean de Luz.
Diving Conditions Score for Grotte à Balou
9.3
ExcellentExcellent diving conditions!
The score is based on a calculation of the current weather and sea conditions.
Dive Site Overview for Grotte à Balou
Depth
16m
Visibility
12m
Experience Level
beginner
Weather Conditions for Grotte à Balou
Wave Height
0.36m
Wind Speed
3.9 m/s
Water Temp
25.3°C
Visibility
54.52km
Cloud Cover
0%
Wave Period
6.65s
Air Temperature
26.2°C
Precipitation
0 mm
Detailed 7-Day Diving Forecast for Grotte à Balou
Alpha
Dive Score Chart for Grotte à Balou
Best time to dive: 6:00 with score 9.30777777777778/10. Water conditions: Waves 0.44m, Wind 6.7 m/s.Best night dive time: 23:00 with score 8.94857142857143/10.
Chart showing hourly dive conditions including wave height, wind speed, water temperature, and visibility throughout the day.
Sunrise at Grotte à Balou: 06:00
Sunset at Grotte à Balou: 18:00
Optimal diving conditions at Grotte à Balou 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
6:00Score: 9.3/10
Waves: 0.44m (6s), Wind: 6.7 m/s
Best Night
23:00Score: 8.9/10
Waves: 0.32m, Wind: 6.4 m/s
Seasonal Analysis for Grotte à BalouAlpha
Historical patterns and best seasons for diving at Grotte à Balou
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 Grotte à Balou
Winter
Avg. Score: 9.9/10
Winter offers the best overall diving conditions with calmer seas and better visibility, despite cooler temperatures.
Best Months for Grotte à Balou
January
Score: 10.0
February
Score: 9.9
December
Score: 9.8
Ideal Conditions for Grotte à Balou
Water Temp
24.3°C / 75.7°F
June
Visibility
20.1m / 65.9ft
October
Wave Height
0.2m / 0.7ft
January
Wave Period
8.0s
January
Seasonal Insights for Grotte à Balou
Grotte à Balou shows typical northern hemisphere patterns with June being the warmest month (24.3°C) and December the coldest (20.3°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.
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.
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