Light Up Dive Squid Toy: A Step-by-Step Guide for Women Divers

By Violet Wallace

A light up dive squid toy is a small, glowing squid-shaped novelty that divers clip to a bag, gear or wrist and use for visibility, play or photography. In this guide you will learn what these toys are, how to choose one that suits your dives, how to attach and use it safely, and which mistakes to avoid. The goal is to help you pick a light that stays visible without distracting you or your buddy underwater.

What a Light Up Dive Squid Toy Actually Is

Most light up dive squid toys are soft or semi-rigid plastic figures with an internal LED and a small battery compartment. Many use a coin cell or button battery, and some pulse or change colors. Manufacturers generally market them as novelty items for the dive bag, the boat or night entries rather than as certified underwater lights.

Shopping for one? See our guide: 8 Best Scuba Dive Light Picks for Every Night Dive (2026).

That distinction matters. A squid toy is not a primary or backup dive light. It will not give you the output, beam control or runtime of a purpose-built torch, and most are rated only for shallow exposure. Treat it as a fun accent or a secondary marker, and keep your real navigation and signaling tools separate.

Step 1: Decide What You Want the Squid to Do

Before you buy or attach one, be clear about its job. Different goals call for different features.

Surface visibility: A brighter, steady or slow-pulsing light helps boat crews and surface support spot your gear at dusk.
Night dive identification: A colored light on your equipment helps you find your own bag or tank on a crowded boat deck.
Underwater photography cues: Some divers use a glowing toy as a prop or a color reference. Keep it small so it does not wash out your strobes.
Fun and buddy humor: Many divers simply like the novelty. In this case, battery life and attachment security matter most.

Step 2: Check the Key Specifications

Look at the product listing or packaging for these details before you commit:

Factor	What to Look For	Why It Matters
Depth rating	Stated depth or “water resistant” language	Many toys are only splash-resistant. Do not assume they are sealed for dive depths.
Battery type	Common coin cell (for example CR2032) and whether it is user-replaceable	Replaceable batteries are easier to maintain than sealed units.
Light mode	Steady, pulse or color-changing	Pulsing modes attract attention but drain batteries faster.
Size and weight	Compact, lightweight body	Heavy or bulky toys can pull on clips and snag on gear.
Attachment	Built-in loop, carabiner or clip	A secure attachment point prevents loss.

Manufacturers specify depth and water-resistance ratings differently, so read each listing closely. If a rating is not stated, assume the toy is for surface use only.

Step 3: Prepare the Toy Before Your Dive

Preparation prevents most problems on the boat or at the dock. Follow these steps:

Test the light at home in a dark room. Confirm all modes work and note the brightness.
Check the battery compartment seal. Look for a gasket or O-ring and make sure it sits flat and clean.
Rinse the toy in fresh water after each salt-water dive, then dry it fully before storing.
Carry a spare coin cell in your dive kit. Keep it in a labeled, dry pouch.
Replace the battery at the start of each season or after a long period of unuse, even if it still lights.

Step 4: Attach the Squid Safely

Where you clip the toy determines how well it works and how safe it is. Use these guidelines:

Attach it to a dive bag handle, a BCD D-ring or a cylinder band, never to a regulator hose or inflator line.
Use a locking carabiner rather than an open snap hook. Test the gate by pulling firmly before you enter the water.
Keep the toy short-tethered so it does not trail into fins or kick into your buddy’s gear.
Avoid placing it where it could block a gauge, a computer display or a purge valve.

Step 5: Use It on the Dive

On a night dive or a low-visibility surface interval, switch the light on before you leave the dock and confirm your buddy can see it. Once in the water, turn it to a steady mode if you need it as a locator, since pulsing modes can be harder to track at a distance. Turn it off during the dive if it is distracting, and never rely on it as your only light source.

For more on building your night kit around a primary light, see the discussion in Dive Computer vs Dive Watch (2026): Which Is Better for Women Divers?, which covers the gear-planning questions that come before accessories.

Step 6: Rinse, Dry and Store

Salt and sand get into battery compartments quickly. After each dive, soak the toy in fresh water, wipe the seal, and let it air dry with the battery door open. Store it somewhere cool and dry, and remove the battery if you will not dive for several weeks. This prevents corrosion and battery leakage.

Common Mistakes

Assuming it is a dive light. A novelty toy is not a substitute for a rated primary or backup light.
Skipping the seal check. A single grain of sand on an O-ring can allow water in.
Using a pulsing mode as a locator. Steady light is easier for buddies to track.
Clipping to the wrong point. Attaching to a hose or inflator line creates a snag and entanglement risk.
Forgetting the spare battery. A dead toy on a night boat trip is an avoidable disappointment.
Leaving it in the bag after salt-water dives. Corrosion sets in quickly.

Tips for Getting the Most Out of It

Pick a color that stands out from your other gear and from typical reef tones.
Label your dive bag with the same color so crew can match gear to divers.
Set a routine: check the battery, check the clip and check the light before every night entry.
If you take photographs, keep the squid out of the frame or switch it off during shots.
For a broader look at dive bag organization that works with small accessories, browse Dive In Bag Backpack: 8 Best Dive Bags for Travel and Boat Diving (2026).

Recommended Gear

These items help you use a light up squid safely and get more from it on the boat and in the water.

Locking carabiner: A locking clip keeps the toy attached to a D-ring or bag handle through rough boat transfers. View on Amazon
Coin cell battery pack: Standard coin cells are the most common power source for these toys, so a spare pack keeps you ready for night dives. View on Amazon
Dive bag with external attachment points: A bag with reinforced loops makes clipping small accessories simpler. View on Amazon

FAQ

Is a light up dive squid toy waterproof enough to dive with?

Many are only splash-resistant. Check the stated depth or water-resistance rating in the listing. If none is given, treat the toy as surface-only and do not take it below the depths the manufacturer specifies.

Can it replace my primary dive light?

No. A squid toy is a novelty or marker item. Your primary and backup lights should be purpose-built dive lights with appropriate output and runtime.

What battery does it usually take?

Most use a small coin cell, often a CR2032 type. Check the battery compartment before buying spares, since sizes vary between models.

How do I stop the battery door from leaking?

Inspect and clean the gasket after every salt-water dive, make sure it seats fully, and rinse the toy in fresh water. Remove the battery during long storage.

Which light mode is best for finding my gear on a boat?

A steady light is usually easier to spot from a distance. Pulsing modes draw attention but can be harder to track and use more battery.

Where should I attach it on my kit?

Clip it to a bag handle or a BCD D-ring with a locking carabiner. Keep it away from hoses, gauges, computer displays and inflator lines.

Is it safe to use on a night dive?

It can help with visibility on the surface and on the boat, but it should never be your only light. Carry a dedicated primary light and a backup, and follow your training agency’s night diving guidance. For questions about your specific equipment or diving limits, consult a certified dive professional.

Conclusion

A light up dive squid toy works best as a fun, visible marker for your bag or gear on the boat and during surface time. Check its water-resistance rating, prepare the battery and seal before each dive, and attach it securely away from hoses and gauges. Keep it in its place as an accessory, and rely on properly rated lights for any underwater navigation.

Ready to choose one?

About Violet Wallace

Violet writes about scuba gear for women. Each guide starts with research into how products are built and what owners report after months of use, and is revised when better options appear.

About the author

Violet Wallace

Violet Wallace writes reviews and buying guides for Scuba Women.