The most common way to enter the water from a small boat while scuba diving is by performing a backwards roll.
This technique is widely used because it is simple, effective, and minimizes the risk of hitting the boat's side or the water's surface too hard, especially in choppy conditions.
Performing the Backwards Roll Entry
The backwards roll entry is a standard technique taught in scuba diving certification courses. It involves sitting on the edge of the boat and rotating backwards into the water.
Here are the steps involved, based on standard diving procedures and the provided reference:
- Gear Up Completely: Ensure all your scuba diving equipment is fully donned and checked. This includes your BCD (Buoyancy Compensator Device), cylinder, regulator, mask, fins, and exposure suit if needed.
- Perform a Buddy Check: Always complete a thorough buddy check with your dive partner to ensure all gear is correctly assembled and functioning before entering the water.
- Position Yourself: Sit on the edge of the boat with your back facing the water. Choose a clear spot where you won't interfere with others.
- Secure Your Gear:
- Hold your weight belt (if it's a traditional belt) firmly with one hand (the reference specifically mentions the left hand). This prevents it from coming loose during the entry.
- Hold your mask and regulator securely in place with your other hand (the reference mentions the right palm). This ensures your mask doesn't get knocked off and your regulator stays in your mouth or close by.
- Lean and Roll: Once ready and signaling to the boat crew and your buddy that you are about to enter, simply lean back and fall backwards into the water. The weight of your scuba unit helps facilitate the roll.
Key Safety Points for Backwards Roll:
- Ensure the area behind you is clear.
- Hold your mask and regulator securely.
- Hold your weight belt or ensure integrated weights are locked.
- Keep your fins clear of the boat edge to avoid getting them caught.
- Maintain a clear signal or call (like "Clear!") just before entering.
Other Boat Entry Techniques
While the backwards roll is primary for smaller boats, other methods exist for larger vessels or specific conditions:
- Giant Stride: Used from larger boats with platforms or decks that are relatively high off the water. Divers stand at the edge and take a large step out into the water.
- Seated Entry: Suitable for low-sided boats or docks. Divers sit on the edge and slide into the water, often sideways.
- Ladder/Platform Entry: Entering via a ladder or purpose-built diving platform, usually on larger dive boats.
The choice of entry depends on the boat design, the height above the water, sea conditions, and the number of divers entering.
