Explore the water around the yacht
The Sia-Dart underwater scooter adds assisted movement for swimming and short underwater exploration. Use is supervised around the yacht and depends on visibility, sea state and the selected stop.
Water activities aboard Alexum
Sia-Dart underwater scooter
Explore the water with a compact underwater propulsion device.
ALEXUM · SOCHI
Add more energy to your charter
Availability, instruction, sea conditions and any additional charge are confirmed before departure.
Sia-Dart underwater scooter
Safety briefing
Crew assistance
Weather dependent
Advance confirmation
Private charter
Real media from the yacht
See the equipment in use
Portrait and landscape media are arranged in a clear grid. Open any photo to see it in full.
Useful details
Plan with confidence
Practical information for Sia-Dart underwater scooter, without vague promises.
Conditions before launch
Powered equipment and advanced activities require a separate briefing and suitable sea conditions. The crew may change the sequence or remove an activity if it cannot be operated safely.
Allow enough charter time
Launching equipment, taking turns and returning it aboard all use charter time. Tell us which activities matter most so the programme can be paced properly.
DepartureSochi Sea Port
CapacityUp to 10 guests
Minimum charterFrom 2 hours
PlanningAdvance confirmation
Verified before departure
Clear details, direct contact
The charter programme is confirmed for your dates, party and sea conditions.
Real yacht
The site uses genuine photographs of Alexum, its decks and cabins.
Captain-approved route
Timing and stops are confirmed according to current conditions.
Itemised estimate
Duration, route and additional services are agreed before payment.
Information reviewed: September 2026.
43.5808° N · 39.7199° E
Boarding in central Sochi
Sochi Sea Port, 1 Voykova Street, Line B. We send the exact berth and crew contact before departure.
Getting here →
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The Sia-Dart underwater scooter adds assisted movement for swimming and short underwater exploration. Use is supervised around the yacht and depends on visibility, sea state and the selected stop.
Preliminary charter estimate
Build your Alexum charter
Choose the date, duration and party size. The calculator provides a preliminary estimate; we will confirm the route and optional services personally.
Preliminary pricefrom ₽80,0002 hours · up to 10 guests
Optional-service prices are temporary estimates. We confirm the final amount before booking.