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The Orda Cave revolutionized cave diving in Russia. It is a dream for divers compared to other sumps in the Russian Federation, and even in the world.
The cave system stretches over 3.2 miles, or 5.1km with around 3 miles or 4.8km over the overall length being under water.
This makes it one of the longest underwater caves and the largest underwater gypsum cave in the world. Orda cave contains the longest siphon in the former Soviet Union at 935 meters.
The gypsum crystal cave is found underneath the western Ural Mountains. The mouth is near the shore of the Kungur River just outside Orda.
#1 Best Overall
- PERFECT SIZE FOR UNDERWATER COMMUNICATION - compact 6" x 4" design makes this Scuba Choice diving slate easy to use in the water, providing ample space for notes, sketches, or emergency messages while not taking up too much space in your dive bag
- WATERPROOF & DURABLE - designed specifically for diving and snorkeling, this reusable underwater writing slate is made from high-quality, waterproof materials, ensuring it performs in all water conditions, whether in freshwater or saltwater
- CLIP FOR EASY ATTACHMENT - equipped with a handy clip, this writing slate can be easily attached to your dive gear or BCD (buoyancy control device) for quick access and convenience, ensuring it stays securely in place during your dive
- COMES WITH GRAPHITE PENCIL - the slate includes a high-quality graphite pencil, which is perfect for writing on the slate and won’t smudge in the water, allowing you to communicate clearly without worrying about ink running
- IDEAL FOR SCUBA DIVING, SNORKELING & FREEDIVING - whether you're a recreational diver, a professional instructor, or a snorkeler, this versatile writing slate is an essential tool for underwater communication, especially when verbal communication isn't possible
The cave is the third largest gypsum caves in the world, but largest gypsum underwater cave in Russia and the world. In 2008, they were included in the UNESCO World Natural Heritage.
Quick Recap
Best Value
- REPLACEMENT LINE FOR DIVE REELS – Replace worn spool line without buying a new reel; compatible with finger spool, scuba reel and SMB marker systems.
- HIGH STRENGTH 2MM NYLON CORD – Tightly woven 8-strand construction delivers durability, abrasion resistance and reliable underwater performance.
- HIGH VISIBILITY ORANGE LINE – Bright color improves underwater visibility, making reel deployment, marker positioning and line tracking easier.
- MULTI-PURPOSE DIVING APPLICATION – Designed for cave diving, wreck diving, reef exploration, SMB, dive flags and float systems.
- EASY INSTALLATION & STORAGE – Flexible round line winds smoothly onto finger spool reels and packs easily into dive gear bags.
Rank #4
- Mark your line with arrows for safe entry and exit of cave or wreck
- Line not included
- Measurement: 3-1/4" x 2", Thickness: 1/8"
Rank #3
- No Standalone lithium batteries are sold with the product
- 3000 Lumens & 6° Ultra-Focused Beam: Capable of delivering a powerful 3000-lumen output, the ORCA7 pierces through murky waters with its professional 6-degree ultra-focused beam. This concentrated light is ideal for long-range signaling and exploring deep crevices, solving the "scattered glare" issue in night diving and low-visibility conditions
- 3 Modes with SOS Safety Signal: Featuring a single side button that is glove-friendly and instinctive underwater, the ORCA7 easily cycles through Medium, High, and a rhythmic SOS beacon. This specialized safety mode is capable of providing a reliable reference point for dive teams when visibility drops and hand signals fall short, ensuring clear communication during critical moments in night diving or technical exploration
- Smart Indicator & Safety Lock: Used for extended underwater exploration, the ORCA7 features a built-in intelligent power monitoring system. The side switch glows to provide real-time status, ensuring divers have full control over their light duration during critical safety stops without the guesswork of traditional torches. A simple 5s hold locks the switch; double-click to unlock, preventing accidental activation in your scuba diving gear bag
- Compact and Powerful: Weighing just 125g and measuring 141mm, this ultra-portable underwater torch sits comfortably in one hand, reducing drag throughout your dive. Its compact design is ideal for illuminating narrow caves and crevices where bulky lights can't reach. It delivers high-intensity brightness without the burdensome weight of traditional scuba gear
Rank #2
- Why: The Hevto full wetsuit is a must-have for anyone planning water activities in cold temperatures or for an extended time. Its insulating properties keep your body warm and comfortable, and the added buoyancy makes swimming and other water sports more efficient.
- Where: The Hevto full wetsuit provides wind and warmth protection, sunburn and scratch prevention, and is suitable for various water activities such as surfing, swimming, diving, snorkeling, kayaking, jet skiing, paddleboarding, and more.
- What: The Hevto men's full wetsuit is made with 3/2mm neoprene for maximum comfort and flexibility in the water. It also features an upgraded tank zipper puller that makes it easy to get in and out of, saving you time and hassle during your water activities.
- How: Hevto latest fashion marvel. The Square-Chested Longline Wonder that exudes confidence and poise. Its clean lines and bold silhouette, gracefully elongating your frame while allowing for graceful movement. The waist side line of this masterpiece accentuates your figure, creating a visually striking hourglass shape. It embraces your body in all the right places, providing a comfortable and snug fit that flatters every body type.
- Who: The Hevto wetsuits is not just a piece of gear but a companion that embodies resilience, determination, and passion to explore the unknown waters. Wearing a Hevto wetsuit connects you to a community of water lovers who share the same sense of adventure and respect for the ocean.
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