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Velké Košariská

Košariská Dive Site in Bratislava, Slovakia

Located near Bratislava, just 3 km from the city of Podunajské Biskupice, and close to the villages of Rovinka and Dunajská Lužná, the Košariská gravel pit is a must-visit destination for divers. This dive site is known for its impressive depth, reaching up to 43m, and its pristine, drinkable-quality water.

Underneath the surface, divers can encounter a variety of freshwater fish species, including carp, sunflower, pike, catfish, eel, zander, and even freshwater jellyfish. Exploring the underwater world of Košariská is a thrilling experience for divers of all levels, from beginners to advanced and expert divers.

Covering an area of 56 ha, this relatively large lake goes by different names, with Velké Košariská and Nové Košariská being the most recognized ones. The visibility here is generally good, with variations depending on the season. During colder months, such as winter and early spring, visibility can exceed 15 meters.

In the summer, the lake transforms into a recreational hub, offering amenities such as snack bars, mobile toilets, and water bike rental services. The lake's bottom features a slightly rugged gravel-muddy terrain, and it is divided into two parts by a small peninsula. The shallow areas are often surrounded by trees, creating a picturesque environment, while the deeper section is separated by a pebble break. Access to the water is most convenient from the gravel beach, which also serves as the best entry point for divers.

As for practical information, there is currently no entry fee, but this may change in the future. Additionally, there are limited parking spaces available near the beach area. If you're planning a visit, the GPS coordinates of Košariská are N48 05.918, E017 15.829.

Experience the underwater wonders of Košariská, where divers can immerse themselves in nature and discover the diverse freshwater ecosystems this dive site has to offer.

Diving Conditions Score for Velké Košariská

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 Velké Košariská

Depth

21m

Visibility

6m

Experience Level

beginner
advanced
expert

Weather Conditions for Velké Košariská

Wave Height

1m

Wind Speed

3.6 m/s

Water Temp

18°C

Visibility

33.04km

Cloud Cover

0%

Wave Period

8s

Air Temperature

19.7°C

Precipitation

0 mm

Detailed 7-Day Diving Forecast for Velké Košariská
Alpha

Dive Score Chart for Velké Košariská

Best time to dive: 6:00 with score 7.735333333333334/10. Water conditions: Waves 1m, Wind 4.8 m/s.Best night dive time: 2:00 with score 7.373333333333333/10.

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

Sunrise at Velké Košariská : 06:00
Sunset at Velké Košariská : 18:00

Optimal diving conditions at Velké Košariská 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
6:00

Score: 7.7/10
Waves: 1m (8s), Wind: 4.8 m/s

🌙
Best Night
2:00

Score: 7.4/10
Waves: 1m, Wind: 3.6 m/s

Seasonal Analysis for Velké Košariská
Alpha

Historical patterns and best seasons for diving at Velké Košariská

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 Velké Košariská

Winter

Avg. Score: 8.3/10

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

Best Months for Velké Košariská

January
Score: 8.5
December
Score: 8.5
February
Score: 8.0

Ideal Conditions for Velké Košariská

Water Temp

Thermometer Emoji

22.6°C / 72.7°F

July

Visibility

Telescope Emoji

16.6m / 54.5ft

November

Wave Height

Wave Emoji

0.9m / 3.0ft

December

Wave Period

Wave Emoji

8.0s

January

Seasonal Insights for Velké Košariská

Velké Košariská shows typical northern hemisphere patterns with July being the warmest month (22.6°C) and December the coldest (-1.7°C). The calmest conditions typically occur in December with average wave heights of 0.9m and wave periods of 8.0s. The most comfortable wave conditions are in December 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 December to February, 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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