Have you ever hopped onto a dive boat, taken in the turquoise expanse of the sea, and thought: “Have I got all the scuba accessories I really need?” If you’re like most divers, you probably have a well-stocked kit: a wetsuit, dive computer, diving mask, snorkel, and maybe even a buoyancy compensator. However, there are some lesser-known (but incredibly useful) items that can transform your dive experience from good to extraordinary. Below, we’ve compiled the top 10 scuba accessories you didn’t know you needed—plus some expert tips on how they fit into your overall dive kit.
10 Scuba Accessories You Didn't Know You Needed
1. Surface Signalling Device
Why You Need It
When it comes to scuba diving, staying visible at the surface can be a real life-saver. Surface signalling devices, such as marker buoys or safety sausages, help you stand out against the waves, making it easier for your boat or dive buddy to spot you.
Recommended Reading: To learn more about different types of signalling gear, check out our post on Mastering Buoyancy Control, which touches on essential safety accessories.
2. Tank Banger
Why You Need It
Ever missed out on showing your buddy a passing turtle because you couldn’t get their attention quickly? A tank banger—often a simple rubber ball or stainless-steel clapper attached to your scuba tank—allows you to emit a sharp, audible ‘bang’ underwater. It’s a discreet but effective way to communicate in the silent underwater world.
Did You Know?
A tank banger also comes in handy during night dives, when hand signals are less visible.
3. Compact Dive Light (Torch)
Why You Need It
A reliable, compact dive light is not just for night diving. Even in crystal-clear waters, nooks and crannies often remain in shadow. A small torch helps illuminate hidden marine life, while also increasing your overall safety in low-visibility conditions.
Further Info: Looking to choose the best torch for your dives? Check out our guide on How to Choose a Good Diving Torch.
4. Dive Knife or Cutting Tool
Why You Need It
Dive knives or line-cutting tools are invaluable if you find yourself entangled in fishing nets or kelp. They’re typically made from stainless steel or titanium to resist corrosion. It’s not about looking adventurous; it’s about being prepared in an emergency.
Bonus Tip
Keep your cutting tool somewhere accessible but safe—often attached to your BCD or strapped to your leg.
5. Spare Mask Strap (or a Second Diving Mask)
Why You Need It
Your diving mask is one of the most important pieces of equipment. A broken strap at the wrong time could cut your dive short. Having a spare strap—or even a backup mask—prevents such mishaps from ruining your day.
Which Is Most Important?
If you’re wondering “Which of the basic scuba diving equipment is most important?” many would argue the mask is vital because if you can’t see properly, you can’t dive safely. If you’re unsure how to choose one, head over to our article on Choosing a Dive Mask.
6. Mesh Gear Bag
Why You Need It
While a dive bag is great for transporting your gear to the site, a mesh gear bag is handy post-dive. It allows water to drain off, keeping your equipment ventilated. A gear bag that dries quickly also helps prevent mould and unpleasant odours.
Dive Deeper
For tips on maintaining all your accessories, see Cleaning Scuba Equipments.
7. Reel or Spool
Why You Need It
A reel is indispensable for deploying a delayed surface marker buoy or for wreck penetration dives. Even if you’re not diving a wreck, a spool can help you navigate safely in areas with strong currents or limited visibility.
Pro Tip
Match your reel size to your diving style. Wreck or cavern divers often need a more substantial reel, while recreational divers can get by with a smaller spool.
8. Anti-Fog Spray or Gel
Why You Need It
Nothing ruins a dive quicker than a fogged-up mask. While many divers learn the “spit trick,” a specialised anti-fog spray or gel is more reliable and hygienic.
Extra Reading
If you want more tips on preventing mask leaks and fogging, check out our guide on How to Select a Diving Mask.
9. Save-a-Dive Kit
Why You Need It
Your save-a-dive kit should contain backup O-rings, fin straps, mask straps, cable ties, and basic tools. Having these on hand can rescue you (or a fellow diver) from a minor gear failure that would otherwise end the adventure prematurely.
Still Unsure What You Need?
If you find yourself asking, “What scuba equipment do you need?” or “What accessories do you need for scuba diving?”—this kit is a must. It’s often overlooked but can save you hours of frustration.
10. Underwater Slate or Wet Notes
Why You Need It
Communication is crucial, and hand signals only go so far. An underwater slate or waterproof notebook allows you to jot down important details, from dive site notes to memorable marine sightings. It’s also brilliant for planning routes or clarifying instructions mid-dive.
Looking for More Insight?
If you’re intrigued by the deeper side of planning your dives, have a look at our blog on Choosing a Dive Computer. A good dive computer paired with a slate can significantly improve your underwater awareness.
Bringing It All Together
We’ve explored some gear that often gets overlooked—but can make all the difference. So, what scuba equipment do you need? At the very least, you need your core diving essentials—like a wetsuit, dive computer, scuba tank, buoyancy compensator, diving mask, and snorkel—plus these extra items to enhance safety, comfort, and convenience. That’s not to say every diver needs every gadget, but many of these accessories solve niche problems and can significantly improve your overall experience.
Extra Tips for Building Your Ultimate Dive Kit
- Quality Over Quantity: Invest in durable gear—especially items like dive knives, marker buoys, and reels. Cheaper options might fail you at the worst possible moment.
- Stay Organised: Use a dedicated dive bag or mesh gear bag to keep everything in place. If you need more guidance, see our piece on Choosing a Good BCD for tips on organisational pockets and attachments.
- Practice Makes Perfect: Incorporate accessory drills into your dive routine, whether it’s deploying a safety sausage or practising quick mask-strap changes.
Ready to Upgrade Your Scuba Gear?
Whether you’re just starting your underwater journey or you’re a seasoned diver wanting to refine your dive kit, remember that the right accessories can elevate your scuba adventures. From surface signalling devices to a reliable tank banger, these items ensure you stay safe, comfortable, and fully immersed in the wonders of the marine life around you.
Visit Dive Newcastle for a wide range of high-quality scuba accessories, dive gear, and expert advice. We’ll help you find the perfect additions to your setup, so you can dive with confidence and style. Happy diving!